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40+ MHz 5 Digit Frequency Counter with an AVR 2313 - (electronic circuit added
7/03) |
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5 Hints for Debugging Microcontroller-based Designs AN 1458 - Agilent Application
Note (added 6/06) |
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50 MHz Frequency Counter - This project is nice and small frequency counter that
reads frequency from 1 Hz to 50 MHz that I have modified from original designed by
Weeder Technologies . I have designed new PCB to fit with 16X1 LCD and change source
code for compatible with new small PCB Specifications - Auto-ranging with floating
decimal point. - Up to 7 digits displayed on 1X16 LCD. - Auto-adjusting gate speed
(0.1 sec to 1 sec). - Microcontroller-based circuitry provides for simplicity, ease of
assembly, and highly stable readout. - Sensitivity approximately 100 mV RMS (100 Hz to
2 MHz), 800 mV RMS @ 50 MHz. - Input overload protected. ….(electronic schematic added
11/08) |
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50 MHz Frequency Counter Voltage Meter and SwR/PWR Indicator - This is a successor
of the PIC16C71 4-digit LED f-counter & V-meter. Some hard to find parts used in the
previous version, which are out of production for some time, has been omitted. A
rather early PIC16C71 has also been replaced by 28-pin device PIC16F876....(electronic
Circuit diagram added 05/07) |
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500W Power-Factor-Corrected PFC Converter Design with FAN4810 / AN-6004 -
Fairchild Application Notes / (app note added 6/06) |
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5V Logic Pulser is Battery-Powered - 09/16/99 EDN Design Ideas /
(added 11/05) A battery-powered, pushbutton-triggered TTL/CMOS-compatible source
of debounced 5V logic pulses is a simple but handy piece of test equipment to have in
any tool kit (Figure 1). The circuit's battery-powered operation complicates what
would orwise be a trivial exercise in switch-bounce and timing-circuit design. The
convenient use of battery power .... |
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60 minute PIC Count Down Timer - On this page, I will introduce the Count-down
timer with PIC16F84A. I am putting a count-down timer by the hardware on Electronic
Circuits Application Garage. The function of the timer is the same as it
approximately. (The stop switch is added) Because this unit was made compactly, the
wiring of the back becomes quite complicated ….(circuit design added 11/08) |
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6090 Digital Decoder Schematics - (electronic circuit added 4/05) |
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68HC11 Function Generator - (electronic schematic / circuit added 11/05) |
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68HC11 Instruction Halts External RC Clock - 04/27/95 EDN-Design Ideas / (added
3/03) |
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68HC11 Synthesizes Accurate Sine Wave - 09/02/96 EDN-Design Ideas / (added 3/03)
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