schematic diagram motherboard

schematic diagram motherboard

Computer Block Diagram - PC Schematic
Here is a brief summary computer block

diagram of a typical Personal Computer.
The von Neumann (CISC) architecture employs a single bus. CISC stands for Complex Instruction Set Computer. A single-bus system is illustrated.

The Harvard (RISC) architecture utilizes two busses - a data bus and a separate address bus. RISC stands for Reduced Instruction Set Computer.
Relationships are shown between the CPU, DRAM, local bus, and the peripherals which connect to the motherboard. The ISA bus, SCSI Bus, PCI bus and USB Bus are shown. Some typical computer parameters are given, along with a Graphics Resolution chart.


MOTHERBOARD SCHEMATIC 759-057-11 REV A PAGE 1 OF 3
ELECTRONIC DIAGRAMS & PARTS: GAME KING PLUS 19” UPRIGHT (821-352-00) - ( PRELIMINARY). AUGUST 24, 2001. MOTHERBOARD SCHEMATIC. 759-057-11. REV A. PAGE 2 OF 3

Schematic Diagram Motherboard - Free Download
Find Schematics & Circuit Diagrams as Schematic Diagram Motherboard. Free Downloads READ MORE...

schematic diagram motherboard

schematic diagram motherboard

Computer Block Diagram - PC Schematic
Here is a brief summary computer block

diagram of a typical Personal Computer.
The von Neumann (CISC) architecture employs a single bus. CISC stands for Complex Instruction Set Computer. A single-bus system is illustrated.

The Harvard (RISC) architecture utilizes two busses - a data bus and a separate address bus. RISC stands for Reduced Instruction Set Computer.
Relationships are shown between the CPU, DRAM, local bus, and the peripherals which connect to the motherboard. The ISA bus, SCSI Bus, PCI bus and USB Bus are shown. Some typical computer parameters are given, along with a Graphics Resolution chart.


MOTHERBOARD SCHEMATIC 759-057-11 REV A PAGE 1 OF 3
ELECTRONIC DIAGRAMS & PARTS: GAME KING PLUS 19” UPRIGHT (821-352-00) - ( PRELIMINARY). AUGUST 24, 2001. MOTHERBOARD SCHEMATIC. 759-057-11. REV A. PAGE 2 OF 3

Schematic Diagram Motherboard - Free Download
Find Schematics & Circuit Diagrams as Schematic Diagram Motherboard. Free Downloads READ MORE...

schematic diagram of power supply using LM7905

schematic diagram of power supply using LM7905

Negative Power Supply

circuit schematic lm7905

READ MORE...

schematic diagram of power supply using LM7905

schematic diagram of power supply using LM7905

Negative Power Supply

circuit schematic lm7905

READ MORE...

Acer AL1916WAB 19" Widescreen LCD Monitor

Acer AL1916WAB 19" Widescreen LCD Monitor

Technical Details

* 19" wide-screen TFT LCD

* 1440 x 900 native resolution

* 700:1 contrast ratio

* 150 /130 degree horizontal/vertical viewing angle

* 5 ms response time





Product Description

From the manufacturer

Enhance your vision with the Acer AL1916WAB 19" Widescreen LCD Monitor. Incorporating the latest LCD technology, the Acer AL1916WAB offers the best visibility, performance and unprecedented value. The high level of brightness 300cd/m2 together with the optimal contrast ratio of 700:1 renders crisp images and enhances legibility. With its fast response time of 5ms, the Acer AL1916WAB brings remarkable display quality to your desktop.



Features



* 19" wide-screen TFT LCD

* 1440 x 900 native resolution

* 700:1 contrast ratio

* 150/130 degree horizontal/vertical viewing angle

* VGA connector

* 300 cd/m2 brightness

* 5ms response time

* Black bezel



Product Description

The Acer AL1916 can help office users maximize their efficiency by simultaneously viewing multiple applications on the large 19" screen. Gamers and movie lovers will enjoy the high-quality color and rapid response rate. READ MORE...

Acer AL1916WAB 19" Widescreen LCD Monitor

Acer AL1916WAB 19" Widescreen LCD Monitor

Technical Details

* 19" wide-screen TFT LCD

* 1440 x 900 native resolution

* 700:1 contrast ratio

* 150 /130 degree horizontal/vertical viewing angle

* 5 ms response time





Product Description

From the manufacturer

Enhance your vision with the Acer AL1916WAB 19" Widescreen LCD Monitor. Incorporating the latest LCD technology, the Acer AL1916WAB offers the best visibility, performance and unprecedented value. The high level of brightness 300cd/m2 together with the optimal contrast ratio of 700:1 renders crisp images and enhances legibility. With its fast response time of 5ms, the Acer AL1916WAB brings remarkable display quality to your desktop.



Features



* 19" wide-screen TFT LCD

* 1440 x 900 native resolution

* 700:1 contrast ratio

* 150/130 degree horizontal/vertical viewing angle

* VGA connector

* 300 cd/m2 brightness

* 5ms response time

* Black bezel



Product Description

The Acer AL1916 can help office users maximize their efficiency by simultaneously viewing multiple applications on the large 19" screen. Gamers and movie lovers will enjoy the high-quality color and rapid response rate. READ MORE...

Lcd Tv Schematic Diagram

Welcome and thanks for visiting our site if this is your first visit you can bookmark using ctrl+d to remember our site. In this post if you looking for Lcd Tv Schematic Diagram you can download it for free using the download image below

Download Free Lcd Tv Schematic Diagram


schematic, driver download, diagram, ebook, user manual service, pdf manual, software update READ MORE...

Lcd Tv Schematic Diagram

Welcome and thanks for visiting our site if this is your first visit you can bookmark using ctrl+d to remember our site. In this post if you looking for Lcd Tv Schematic Diagram you can download it for free using the download image below

Download Free Lcd Tv Schematic Diagram


schematic, driver download, diagram, ebook, user manual service, pdf manual, software update READ MORE...

Download Sharp - LC26, LC32P50E, LC37P50E Schematic-Diagram

Download Sharp - LC26, LC32P50E, LC37P50E Schematic-Diagram

LCD TV / AV Monitor

LC26, LC32P50E, LC37P50E Schematic-Diagram

download LC26, LC32P50E, LC37P50E Schematic-Diagram

READ MORE...

Download Sharp - LC26, LC32P50E, LC37P50E Schematic-Diagram

Download Sharp - LC26, LC32P50E, LC37P50E Schematic-Diagram

LCD TV / AV Monitor

LC26, LC32P50E, LC37P50E Schematic-Diagram

download LC26, LC32P50E, LC37P50E Schematic-Diagram

READ MORE...

voltage regulator lm7805

Voltage Regulator (regulator), usually having three legs, converts varying input voltage and produces a constant regulated output voltage. They are available in a variety of outputs.


The most common part numbers start with the numbers 78 or 79 and finish with two digits indicating the output voltage. The number 78 represents positive voltage and 79 negative one. The 78XX series of voltage regulators are designed for positive input. And the 79XX series is designed for negative input.

Examples:

· 5V DC Regulator Name: LM7805 or MC7805

· -5V DC Regulator Name: LM7905 or MC7905

· 6V DC Regulator Name: LM7806 or MC7806

· -9V DC Regulator Name: LM7909 or MC7909

The LM78XX series typically has the ability to drive current up to 1A. For application requirements up to 150mA, 78LXX can be used. As mentioned above, the component has three legs: Input leg which can hold up to 36VDC Common leg (GND) and an output leg with the regulator's voltage. For maximum voltage regulation, adding a capacitor in parallel between the common leg and the output is usually recommended. Typically a 0.1MF capacitor is used. This eliminates any high frequency AC voltage that could otherwise combine with the output voltage. See below circuit diagram which represents a typical use of a voltage regulator.
 
 
 

Note:

As a general rule the input voltage should be limited to 2 to 3 volts above the output voltage. The LM78XX series can handle up to 36 volts input, be advised that the power difference between the input and output appears as heat. If the input voltage is unnecessarily high, the regulator will overheat. Unless sufficient heat dissipation is provided through heat sinking, the regulator will shut down.
source : http://www.eidusa.com/Electronics_Voltage_Regulator.htm READ MORE...

voltage regulator lm7805

Voltage Regulator (regulator), usually having three legs, converts varying input voltage and produces a constant regulated output voltage. They are available in a variety of outputs.


The most common part numbers start with the numbers 78 or 79 and finish with two digits indicating the output voltage. The number 78 represents positive voltage and 79 negative one. The 78XX series of voltage regulators are designed for positive input. And the 79XX series is designed for negative input.

Examples:

· 5V DC Regulator Name: LM7805 or MC7805

· -5V DC Regulator Name: LM7905 or MC7905

· 6V DC Regulator Name: LM7806 or MC7806

· -9V DC Regulator Name: LM7909 or MC7909

The LM78XX series typically has the ability to drive current up to 1A. For application requirements up to 150mA, 78LXX can be used. As mentioned above, the component has three legs: Input leg which can hold up to 36VDC Common leg (GND) and an output leg with the regulator's voltage. For maximum voltage regulation, adding a capacitor in parallel between the common leg and the output is usually recommended. Typically a 0.1MF capacitor is used. This eliminates any high frequency AC voltage that could otherwise combine with the output voltage. See below circuit diagram which represents a typical use of a voltage regulator.
 
 
 

Note:

As a general rule the input voltage should be limited to 2 to 3 volts above the output voltage. The LM78XX series can handle up to 36 volts input, be advised that the power difference between the input and output appears as heat. If the input voltage is unnecessarily high, the regulator will overheat. Unless sufficient heat dissipation is provided through heat sinking, the regulator will shut down.
source : http://www.eidusa.com/Electronics_Voltage_Regulator.htm READ MORE...

LM7805 • LM7806 • LM7808 • LM7809 •LM7810 • LM7812 • LM7815 • LM7818 • LM7824 •LM7805A • LM7806A • LM7808A •LM7809A •LM7810A • LM7812A • LM7815A • LM7818A • LM7824A

LM7805 • LM7806 • LM7808 • LM7809 •LM7810 • LM7812 • LM7815 • LM7818 • LM7824 •LM7805A • LM7806A • LM7808A •LM7809A •LM7810A • LM7812A • LM7815A • LM7818A • LM7824A datasheet Positive Voltage Regulator

3-Terminal 1A Positive Voltage Regulator


General Description

The LM78XX series of three terminal positive regulators are

available in the TO-220 package and with several fixed output

voltages, making them useful in a wide range of applications.

Each type employs internal current limiting, thermal shut down

and safe operating area protection, making it essentially inde-

structible. If adequate heat sinking is provided, they can deliver

over 1A output current. Although designed primarily as fixed

voltage regulators, these devices can be used with external

components to obtain adjustable voltages and currents

 

 

Features

 Output Current up to 1A

Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24

 Thermal Overload Protection

Short Circuit Protection

 Output Transistor Safe Operating Area Protection READ MORE...

LM7805 • LM7806 • LM7808 • LM7809 •LM7810 • LM7812 • LM7815 • LM7818 • LM7824 •LM7805A • LM7806A • LM7808A •LM7809A •LM7810A • LM7812A • LM7815A • LM7818A • LM7824A

LM7805 • LM7806 • LM7808 • LM7809 •LM7810 • LM7812 • LM7815 • LM7818 • LM7824 •LM7805A • LM7806A • LM7808A •LM7809A •LM7810A • LM7812A • LM7815A • LM7818A • LM7824A datasheet Positive Voltage Regulator

3-Terminal 1A Positive Voltage Regulator


General Description

The LM78XX series of three terminal positive regulators are

available in the TO-220 package and with several fixed output

voltages, making them useful in a wide range of applications.

Each type employs internal current limiting, thermal shut down

and safe operating area protection, making it essentially inde-

structible. If adequate heat sinking is provided, they can deliver

over 1A output current. Although designed primarily as fixed

voltage regulators, these devices can be used with external

components to obtain adjustable voltages and currents

 

 

Features

 Output Current up to 1A

Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24

 Thermal Overload Protection

Short Circuit Protection

 Output Transistor Safe Operating Area Protection READ MORE...

bc547 datasheet

bc547 datasheet

NPN general purpose transistors

Philips Semiconductors

FEATURES


• Low current (max. 100 mA)

• Low voltage (max. 65 V).

APPLICATIONS

• General purpose switching and amplification.

DESCRIPTION

NPN transistor in a TO-92; SOT54 plastic package.

PNP complements: BC556 and BC557

download  bc547 datasheet READ MORE...

bc547 datasheet

bc547 datasheet

NPN general purpose transistors

Philips Semiconductors

FEATURES


• Low current (max. 100 mA)

• Low voltage (max. 65 V).

APPLICATIONS

• General purpose switching and amplification.

DESCRIPTION

NPN transistor in a TO-92; SOT54 plastic package.

PNP complements: BC556 and BC557

download  bc547 datasheet READ MORE...

M7 Pre amplifier - amplifiers tube

M7 Pre amplifier - amplifiers tube

M7 Preamplifier READ MORE...

M7 Pre amplifier - amplifiers tube

M7 Pre amplifier - amplifiers tube

M7 Preamplifier READ MORE...

300 2x 10W Integrated Amplifier - amplifiers tube

300 2x 10W Integrated Amplifier. (amplifiers tube)
The Audio Innovations 300 integrated amplifier was introduced in 1986. The 300Mk2 was introduced 5 years later in 1991. It is a 2x 10W Push-Pull amp using two ECL86's per channel in the power amp. It features 5 line inputs (4 for the Mk2) and a phono input. READ MORE...

300 2x 10W Integrated Amplifier - amplifiers tube

300 2x 10W Integrated Amplifier. (amplifiers tube)
The Audio Innovations 300 integrated amplifier was introduced in 1986. The 300Mk2 was introduced 5 years later in 1991. It is a 2x 10W Push-Pull amp using two ECL86's per channel in the power amp. It features 5 line inputs (4 for the Mk2) and a phono input. READ MORE...

18v power supply USING LM350T

18v power supply USING LM350T

This is a classic linear power supply which produces a regulated 18v, rated at about 1 amp.

POWERSUPPLY

18V / 1 AMP POWER SUPPLY

READ MORE...

18v power supply USING LM350T

18v power supply USING LM350T

This is a classic linear power supply which produces a regulated 18v, rated at about 1 amp.

POWERSUPPLY

18V / 1 AMP POWER SUPPLY

READ MORE...

7805 power supply

5V power supply using 7805

7805 is a 5V fixed three terminal positive voltage regulator IC .The IC has features such as safe operating area protection,thermal shut down, internal current limiting which makes the IC very rugged.Out out currents up to 1A can be drawn from the IC provided that there is a proper heat sink.A 9V transformer steps down the main voltage , 1A bridge rectifies it and capacitor C1 filters it and 7805 regulates it to produce a steady 5V DC .

Circuit diagram with Parts list.

powersupply

Notes.

The bridge D1 can be also made by yourself by using four 1N 4007 diodes.

If more than 400mA current is supposed to be taken from the circuit , fit a heat sink with to the 7805 IC. READ MORE...

7805 power supply

5V power supply using 7805

7805 is a 5V fixed three terminal positive voltage regulator IC .The IC has features such as safe operating area protection,thermal shut down, internal current limiting which makes the IC very rugged.Out out currents up to 1A can be drawn from the IC provided that there is a proper heat sink.A 9V transformer steps down the main voltage , 1A bridge rectifies it and capacitor C1 filters it and 7805 regulates it to produce a steady 5V DC .

Circuit diagram with Parts list.

powersupply

Notes.

The bridge D1 can be also made by yourself by using four 1N 4007 diodes.

If more than 400mA current is supposed to be taken from the circuit , fit a heat sink with to the 7805 IC. READ MORE...

12vdc power supply

12vdc power supply

12Volt DC Power Supply

D1 = BRDIGE

C1 = 2000UF / 25V

R1 = 200 R

D2 = IN759

R2 = 10K

Q1 =2N3053

READ MORE...

12vdc power supply

12vdc power supply

12Volt DC Power Supply

D1 = BRDIGE

C1 = 2000UF / 25V

R1 = 200 R

D2 = IN759

R2 = 10K

Q1 =2N3053

READ MORE...

Make Your Own Printed Circuit Boards on a Laserjet

Make Your Own Printed Circuit Boards on a Laserjet
This week, I collaborated with Xander to show you how to make your own printed circuit boards (PCBs) using a laserjet printer.

Make Your Own Printed Circuit Boards on a Laserjet

READ MORE...

Make Your Own Printed Circuit Boards on a Laserjet

Make Your Own Printed Circuit Boards on a Laserjet
This week, I collaborated with Xander to show you how to make your own printed circuit boards (PCBs) using a laserjet printer.

Make Your Own Printed Circuit Boards on a Laserjet

READ MORE...

switchmode power supply

switchmode power supply

A Switchedmode power supply (also Switchingmode power supply, SMPS, or simply Switcher) is an electronic Power Supply Unit (PSU) that incorporates a switching regulator in order to provide the required output voltage. An SMPS is actually a power converter that transmits power from a source (e.g., a battery or the electrical power grid) to a load ( a personal computer) with ideally no losses. The function of the converter is to provide a reliable output voltage often at a different level than the input voltage.


When mechanical shafts are rotating, a simple gear train can deliver power to a shaft at one speed from a shaft at a different speed. However, fluid power can be converted from a source with one pressure–flow ratio to another pressure–flow level without rotation by using the switching action of a hydraulic ram. Similarly, when AC power is being delivered from an AC source, a simple transformer can be used to convert power at one voltage level to power at another voltage level with low losses. Likewise, the switched action of an SMPS can convert DC power with low losses.
 
Switching-Mode Power Supply Design
This site is dedicated to switching-mode power supply circuit designers. Here you will find solutions to the most difficult problems facing you as a power supply designer, a tutorial that places power supply design problems in context, and resources that aid in your power supply design tasks. If you are a first-time visitor you will want to read this page as an orientation. If you have been here before (thank you for coming back), use the menu on the right to find the power supply design information you need.
 
Power Supplies Reference Manual and Design Guide
in the SWITCHMODE Power Supplies Reference Manual and Design Guide should ...... SWITCHMODE power supplies. The ICs for Switching Power Supplies figure
 
 
Switch Mode Power Supplies
SwitchMode Power Supplies: From Circuit Theory to the Workbench. Michael Tse ... To show how a switchmode power supply can be ..
 
 
Efficient Switchmode Power Supply Start-Up Circuit
Introduction


The purpose of this application note is to demonstrate the many advantages of using the Supertex LND150N3 in the

start-up circuit for switchmode power supplies.

Commonly used low voltage bipolar, CMOS and BiCMOS switchmode power supply PWM ICs usually operate from

supply voltages of up to 18V. When the input power for the switchmode converter is available at voltages higher than

the maximum voltage rating of the IC, the voltage has to be reduced with a start-up circuit. A frequent requirement is

for operation directly from a rectified 120V or 240V AC line without the use of tap changing switches for the selection of different voltages.
 
 
 
  READ MORE...

switchmode power supply

switchmode power supply

A Switchedmode power supply (also Switchingmode power supply, SMPS, or simply Switcher) is an electronic Power Supply Unit (PSU) that incorporates a switching regulator in order to provide the required output voltage. An SMPS is actually a power converter that transmits power from a source (e.g., a battery or the electrical power grid) to a load ( a personal computer) with ideally no losses. The function of the converter is to provide a reliable output voltage often at a different level than the input voltage.


When mechanical shafts are rotating, a simple gear train can deliver power to a shaft at one speed from a shaft at a different speed. However, fluid power can be converted from a source with one pressure–flow ratio to another pressure–flow level without rotation by using the switching action of a hydraulic ram. Similarly, when AC power is being delivered from an AC source, a simple transformer can be used to convert power at one voltage level to power at another voltage level with low losses. Likewise, the switched action of an SMPS can convert DC power with low losses.
 
Switching-Mode Power Supply Design
This site is dedicated to switching-mode power supply circuit designers. Here you will find solutions to the most difficult problems facing you as a power supply designer, a tutorial that places power supply design problems in context, and resources that aid in your power supply design tasks. If you are a first-time visitor you will want to read this page as an orientation. If you have been here before (thank you for coming back), use the menu on the right to find the power supply design information you need.
 
Power Supplies Reference Manual and Design Guide
in the SWITCHMODE Power Supplies Reference Manual and Design Guide should ...... SWITCHMODE power supplies. The ICs for Switching Power Supplies figure
 
 
Switch Mode Power Supplies
SwitchMode Power Supplies: From Circuit Theory to the Workbench. Michael Tse ... To show how a switchmode power supply can be ..
 
 
Efficient Switchmode Power Supply Start-Up Circuit
Introduction


The purpose of this application note is to demonstrate the many advantages of using the Supertex LND150N3 in the

start-up circuit for switchmode power supplies.

Commonly used low voltage bipolar, CMOS and BiCMOS switchmode power supply PWM ICs usually operate from

supply voltages of up to 18V. When the input power for the switchmode converter is available at voltages higher than

the maximum voltage rating of the IC, the voltage has to be reduced with a start-up circuit. A frequent requirement is

for operation directly from a rectified 120V or 240V AC line without the use of tap changing switches for the selection of different voltages.
 
 
 
  READ MORE...

Small Variable Power Supply Circuit Using LM723

Small Variable Power Supply Circuit Using LM723

This circuit is a circuit diagram of a variable power supply. Variable power supply circuit is a simple but reliable one based on an integrated voltage regulator from the eldest LM723. R2 set the output voltage. The maximum flow is determined by the value of R3, the excessive current in the circuit protection senses R3 and LM723 voltage output stage begins to close off this fast voltage approaches 0.65 V. In this way the current through R3 can never exceed 0.65/R3, even if output is shorted. C3 and C4, both ceramic, should be placed as close as possible to the integrated circuit, because the LM723 can be vulnerable to unwanted oscillations. The following is a schematic drawing:

The LM723 works with the input DC voltage V and IC 9,5-40 itself can be the source of about 150 mA if the output voltage is not more than 6-7 V below the input. When the external pass transistor is used (in the usual emitter-follower mode), the base-emitter of T1 is a significant resistance and the output stage of integrated circuits is relatively light load. All the current drawn by the load through a T1 and it decreases the amount of power that is proportional to the current and the difference between input and output DC voltage.

Source: www.zen22142.zen.co.uk READ MORE...

Small Variable Power Supply Circuit Using LM723

Small Variable Power Supply Circuit Using LM723

This circuit is a circuit diagram of a variable power supply. Variable power supply circuit is a simple but reliable one based on an integrated voltage regulator from the eldest LM723. R2 set the output voltage. The maximum flow is determined by the value of R3, the excessive current in the circuit protection senses R3 and LM723 voltage output stage begins to close off this fast voltage approaches 0.65 V. In this way the current through R3 can never exceed 0.65/R3, even if output is shorted. C3 and C4, both ceramic, should be placed as close as possible to the integrated circuit, because the LM723 can be vulnerable to unwanted oscillations. The following is a schematic drawing:

The LM723 works with the input DC voltage V and IC 9,5-40 itself can be the source of about 150 mA if the output voltage is not more than 6-7 V below the input. When the external pass transistor is used (in the usual emitter-follower mode), the base-emitter of T1 is a significant resistance and the output stage of integrated circuits is relatively light load. All the current drawn by the load through a T1 and it decreases the amount of power that is proportional to the current and the difference between input and output DC voltage.

Source: www.zen22142.zen.co.uk READ MORE...

adjustable regulated power supply - 1.2 - 15Volt /3A

 adjustable regulated power supply 1.2 - 15Volt /3A

This kit provides a variable output power supply ranging from 1.2 to 15 Volt / 3 A. It uses Low Dropout Positive Regulator LM1084 in TO220 package for delivering variable output voltage.

Schematic

Input - 18 VAC/DC




Output - variable output from 1.2 ~ 15 VOLT / 3 A Regulated low ripple DC voltage
Heatsink for regulator IC

On board bridge rectifier to convert AC to DC

LED indication at input of IC

Power Battery Terminal (PBT) for easy input and output connection

Zener trimmed band gap reference, current limiting and thermal shutdown (provided by IC feature)

Filter capacitors for low ripple DC output

Onboard PCB mounted Potentiometer (POT) for varying the output voltage

PCB dimensions 46 mm x 58 mm

Four mounting holes of 3.2 mm each


Parts List :
 
BR1 = BR34
CN1 = 2 PIN PBT
CN2 = 2 PIN PBT
C1 = 2200UF /25V
C2 = 0.1UF
C3 = 47UF / 25V
D1 = RED LED
P1 = 4.7K POT
R1 = 1.5K
R2 = 120ohm
U1 = LM1084 READ MORE...

adjustable regulated power supply - 1.2 - 15Volt /3A

 adjustable regulated power supply 1.2 - 15Volt /3A

This kit provides a variable output power supply ranging from 1.2 to 15 Volt / 3 A. It uses Low Dropout Positive Regulator LM1084 in TO220 package for delivering variable output voltage.

Schematic

Input - 18 VAC/DC




Output - variable output from 1.2 ~ 15 VOLT / 3 A Regulated low ripple DC voltage
Heatsink for regulator IC

On board bridge rectifier to convert AC to DC

LED indication at input of IC

Power Battery Terminal (PBT) for easy input and output connection

Zener trimmed band gap reference, current limiting and thermal shutdown (provided by IC feature)

Filter capacitors for low ripple DC output

Onboard PCB mounted Potentiometer (POT) for varying the output voltage

PCB dimensions 46 mm x 58 mm

Four mounting holes of 3.2 mm each


Parts List :
 
BR1 = BR34
CN1 = 2 PIN PBT
CN2 = 2 PIN PBT
C1 = 2200UF /25V
C2 = 0.1UF
C3 = 47UF / 25V
D1 = RED LED
P1 = 4.7K POT
R1 = 1.5K
R2 = 120ohm
U1 = LM1084 READ MORE...

Adjustable power supply using LM317

Adjustable power supply using LM317

For the LM317:


R2 = (192 x Vout) - 240, where R2 in ohms, Vout is in volts and must be at between 1.2 V and 35 V.

Vin should be at least 2.5V greater than Vout. Select a wall adapter with a voltage at least 2.5 V greater than your regulated output at full load

Maximum output current is 1 A. Use proper heatsink for LM317 if it has to dissipate more than 1W.

The tab of the LM317 is connected to the center pin. READ MORE...

Adjustable power supply using LM317

Adjustable power supply using LM317

For the LM317:


R2 = (192 x Vout) - 240, where R2 in ohms, Vout is in volts and must be at between 1.2 V and 35 V.

Vin should be at least 2.5V greater than Vout. Select a wall adapter with a voltage at least 2.5 V greater than your regulated output at full load

Maximum output current is 1 A. Use proper heatsink for LM317 if it has to dissipate more than 1W.

The tab of the LM317 is connected to the center pin. READ MORE...

tda audio amplifier

tda audio amplifier

home audio amplifiers

power amplifier circuit

TDA2040

20W HIFI POWER AMP

TDA7057Q

2x3W POWER AMP

 

TDA7233S

1.6W POWER AMPLIFIER

 

car amplifier stereo

TDA1554Q

AUDIO AMP 2x11W

 

TDA1553Q

POWER AMP 2x22W

 

TDA1521

POWER AMP 2x12W

 

TDA1514

POWER AMP 40W

 

TDA1010A

POWER AMP 9W

 

TDA 2040

20W HIFI AUDIO AMPLIFIER

 

TDA7241

20W POWER AMPLIFIER

 

 

TDA7350

2x12W POWER AMP

 

 

cheap car amplifier

TDA2003

10W POWER AMPLIFIER

 

TDA2004

2x10W POWER AMP

 

TDA2008

12W POWER AMPLIFIER

 

 

TDA2009

POWER AMP 2x9W

 

READ MORE...

tda audio amplifier

tda audio amplifier

home audio amplifiers

power amplifier circuit

TDA2040

20W HIFI POWER AMP

TDA7057Q

2x3W POWER AMP

 

TDA7233S

1.6W POWER AMPLIFIER

 

car amplifier stereo

TDA1554Q

AUDIO AMP 2x11W

 

TDA1553Q

POWER AMP 2x22W

 

TDA1521

POWER AMP 2x12W

 

TDA1514

POWER AMP 40W

 

TDA1010A

POWER AMP 9W

 

TDA 2040

20W HIFI AUDIO AMPLIFIER

 

TDA7241

20W POWER AMPLIFIER

 

 

TDA7350

2x12W POWER AMP

 

 

cheap car amplifier

TDA2003

10W POWER AMPLIFIER

 

TDA2004

2x10W POWER AMP

 

TDA2008

12W POWER AMPLIFIER

 

 

TDA2009

POWER AMP 2x9W

 

READ MORE...