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Circuits designed by David Johnson, P.E.
Last Updated on: Friday, December 29, 2017 02:53 AM

List of Dave's Circuit Designs

Text & Graphics Copyright David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY CONTENT to your WEB SITE server!




Signal Generation Circuits
 
Circuits Designed by Dave Johnson, P.E. :

Honeybee Counter

Indicates when it is Time to Dust

Is it Time to Dust?

LED Flashing Badge #1

LED Flashing Badge #2

Low Battery Voltage Flasher

Low Frequency Oscillator draws only 2 Nanoamps

Low Power 100khz Light Receiver

Medium Power 125khz Oscillator

Medium Power 125khz Oscillator #2

Micro Power 40Khz Burst Laser Diode Driver

Micro Power Over-Temperature Alarm

Micropower CMOS Oscillator, Draws Only 0.5ua

On/Off Flip/Flop Circuit with Automatic Timeout

One Shot (D-Flip/Flop) Circuit

Precision 40Khz Triangle Generator

Precision Ultra Lower Power Oscillator

Ten-Second Ultra Lower Power Oscillator

Touch Activated Switch

Ultra Low Current Oscillator

Ultra Low Current Oscillator #4

Ultra Low Power Astable Multivibrator

Ultra Lower Power Oscillator

Ultra Pure 125kHz Sine Wave Signal Source

Very Low Power Astable Multivibrator

Very Low Power Gated Crystal Oscillator

10 Second Ultra Lower Power Oscillator

125Khz LC Oscillator

125Khz Oscillator from CMOS Inverters

200Mhz-400Mhz Voltage Controlled Oscillator (VCO)

3 Volt Low Battery Voltage Flasher

3v 2hz Oscillator

40Khz LED Test Signal Generator

Advertising Badge #1 with Flashing LED

Advertising Badge #2 with Flashing LED

Button Battery Cell Internal Resistance Measurement

CMOS Inverter 125khz LC Oscillator

CMOS Inverter Parallel LC Oscillator

CMOS Nand Gate Forms Gated 125Khz Oscillator

CMOS Schmitt Trigger IC Makes VCO

Crystal Controlled 1KHz Signal Generator

Delayed Pulse Generator

D-Flip/Flop One Shot Circuit


 

Dave's Circuits

Hobby Circuits

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