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Driver Circuits, Page 1
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Last Updated on: Friday, February 05, 2010 10:05 AM

Circuits Designed by Dave Johnson, P.E. :

300V PEAK TO PEAK SIGNAL GENERATOR
This circuit converts a square wave signal to a +-150 volt output signal with fast 100nS rise and fall times.

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

1.5V Battery Powers White LED Driver - 09/30/04 EDN-Design Ideas: Although white LEDs are common in a variety of lighting applications, ir 3 to 4V forward-voltage drop makes low-voltage applications challenging. Charge pumps and or ICs are available for driving white LEDs, but.....(design idea added 1/06)

12 DB Amplifier & High Current Line Driver with DC Servo - AS024 Jenson Transformer Application Note (app note 11/02)

12 Volt DC Fluorescent Lamp Driver (Aaron Cake) - This fluorescent lamp driver uses a normal 120 to 6V step-down transformer in reverse to step12V to about350-Volt to drive a lamp without need to warm filaments. (added 04/03/02)

128x64 LCD assembly Driver for AT90S2314 - Here you will find a source code to drive a graphics LCD display 128x64 pixels with AT90S2313.The connections between LCD and AVR, you will find them to the source code.….(electronic circuit added 4/05)

16x16 LED Matrix & Driver - (circuit / schematic design added 6/06)

20 dB Amplifier & High Current Balanced Line Driver - AS023 Jenson Transformer Application Note (app note 7/02)

300v Peak To Peak Signal Generator - This circuit converts a square wave signal to a +-150 volt output signal with fast 100nS rise and fall times. ….(designed by David A. Johnson)

30hz to 90hz Adj P.A. Driver - (circuit / schematic design added 6/06)

3-Ph BLDC Drive Control with Hall Sensors - This reference design describes a 3-phase 4-quadrant sensor BLDC motor drive, which can run in both a speed open loop and a speed closed loop. application is designed for MC68HC908MRxx family dedicated to motor control applications. This reference design includes a description of Motorola 68HC908MR32 features, basic motor ory, system design concept, hardware implementation, and ..... (app note added 6/06)

4 Channel Timer using Atmel 89C4051 & MAX7219 display Driver - using Atmel 89C4051 and MAX7219 display Driver (circuit / schematic design added 7/06)

50 Ohm Long Line Driver - AS029 Jenson Transformer Application Note (app note 6/07)

50 Ohm Long Line Receiver & Driver - AS028 Jenson Transformer Application Note (app note 6/07)

555 Timer Stall-Motor Switch Machine Drivers - (schematic added 05/06/07)

555 Timer-Based Flyback Transformer Driver - My 24kV high voltage "Jacob's Ladder" from DIY flyback transformer driver using 555 timer….(electronic circuit added 02/09)

6 Aspect-Searchlight Signal Driver (LM555) - The circuit on this page is a 6 Aspect driver for a bicolour LED type Searchlight Signal....(circuit added 8/03)

74*245-based Motor driver - A simple, time-honored approach is to use one or more 74*245 chips (normally 74AC245 is used for maximum current capability) to provide motor drive current. Here, each channel of drive power is provided by one or more buffer on chip. (added 6/06)

Drivers: #'s A B - C D - G H - K L - N O - R S T U-Z