12 Volt Sump Pump Control: 12 Volt Toilet Tank Refiller: Circuit checks swamp cooler water level: 10/31/2002 EDN - Design Ideas / A "swamp cooler" is an easy way to obtain effective air conditioning, especially in hot and dry climates, if a water source...
Thursday, March 23, 2006
Monday, March 20, 2006
Tachometers / RPM Circuits
AN-162: LM2907 Tachometer/Speed Switch Building Block Applications: National Semiconductor - Application Note Digital Tachometer Avoids Analog Vices: 11/10/94 EDN-Design Ideas...
Saturday, March 11, 2006
Programmable Digital Ignition
Two Stroke CDI (Capacitive Discharge Ignition)The next schematic shows the coil configuration at magnetic plate and the position of the pick-up at the outer sider of the plate. This pick-up is triggered by the step on the plate. Below are shown the signals...
Thursday, March 02, 2006
Programmable CDI Ignition with PIC16F84
Features::-As simple as possible-Programmable advance control-Use no exotic hard-to-find components-Use a normal 4.8V RX battery-Integrated spark test function, no signal generator is needed.(makes 4 or 140 sparks/second without the need for a trigger...
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