GEVV Archive

JFET Compressor Circuit

Compressor Circuit -Ratio-Threshold-Attack and Release controls Out Level bypass feature ensures that there is a 9 volt battery works with sprint circuit layout prepared by PCBs The proposed compressor is..

PIC Development Boards PIC16F84 PIC16F873

A PCB with firmware to exploit and test all the functions in this PIC microcontroller. The board features a LCD, keyboard, piezo sounder, Real Time Clock with backup power, I2C..

Atmel Avr AT89C2051 AT89C4051 USB Programmer

* The aim of this project was to create a USB programmer for AT89C2051/4051 Atmel microcontrollers. The device is designed to flash memory chips describe a loaded and can be..

Philips RC5 Remote Dimmer with PIC16F628

The purpose of the remote dimmer control circuit TV (Philips RC5 code) 220V lamp with brightness adjustment can be made. Increase and decrease +10, -10 and +1, -1 as is..

ATMEGA128 ATMEGA32 PC Controlled LED Matrix Animation LED Signs

Serve to control the 128×64 graphic LCD with a preview of the contents of the array and menu graphics. The heart of the controller is Atmega 128 CPU for communication..

TDA1516BQ Amplifier Circuit with PC Card PCB

Almost all modern sound cards are no longer integrated audio amplifier. For all those who have no external active speakers on the PC operating system, is This small stereo amplifier..

5 Amps Current Regulator with MOSFET

IRF4905 MOSFET with very few elements 5 amp current control, current limiting circuit input voltage line connected on 8 + .40 volts DC current through this circuit is limited to..

USB to LPT Converter Circuit with Atmel ATMEGA8

Converter from USB to LPT parallel port (25 pin SubD receptacle) with hardware virtualization at input/output instruction level Supports all parallel port modes named SPP, EPP and ECP, 16 Byte..

Adjustable DC DC Converter Circuit SG3524

Supply most laboratory power supplies maximum output current of 2 A to 3 A (Depending on model), while the output voltages usually up to 20 V or are more adjustable…

Stepper Motor driver circuit with L297 L298

L298 L297 Motor Driver Robot, cnc, or you could use different control projects prepared with sprint layout PCB and the SPLA have been prepared with schema file. L298 is an..