Free electronic circuit design and schematic diagram
High voltage applications can be found in various fields, such as ignition in internal combustion engine, gas igniter, cathode ray tube excitation, ionizer for dust odor catcher for air sanitary, ionic propulsion or many other things. The schematic diagram presented here shows a circuit of high voltage generator that can be used for various purposes. This circuit uses a 4049 […]
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For critical operation, the power loss can be unacceptable. It might be costly if a financial data is lost from the memory in the middle of point of sale transaction, or even it can be deadly if some life support devices fails during critical surgery. The schematic diagram presented here is a battery backup regulator circuit, useful for memory or […]
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A compressor circuit shown in the schematic diagram below can produce consistent output of 1.4V P-P over entire 60dB range that is very useful for audio level/volume stabilization. As the main components, this circuit uses a 741 opamp and JFET. With input range of 20mV to 2oV, this circuit has delay time of 0.4s (decay time) and response time of […]
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