Free electronic circuit design and schematic diagram
This is a Low-Cost Accurate Square-Root Circuit. This circuit is used to provide a square-root function with a good accuracy. The benefit of This circuit is cheap. This circuit produce a current output which can be used to be converted to voltage by a summing junction current-to-voltage converter or to drive a meter directly. This circuit requires 15V supply. The […]
Read moreThis is a RK series power line filters video. This video provide information about RK series power line filters like insertion loss information. The information about insertion loss include minimum insertion loss and maximum insertion loss. RK series power line filters can be used in many application even in high noise environment. The application that uses RK series power line […]
Read moreThis is a video about driving high voltage piezo actuator. Piezo electric device can convert mechanical energy to electrical energy. When converting mechanical energy to electrical energy, this device acts as sensor. Beside that, this device can also convert electrical energy to mechanical energy. When converting electrical energy to mechanical energy, This device acts as actuator. This actuator need 400V […]
Read moreThis is a circuit breakers video. This video explains about circuit breakers. Circuit breakers is a electronics device that is designed to provide convenience and protection. A circuit breaker can be easily and quickly reset after it trips and the circuit fault is corrected. If a fuse blows a replacement fuse may not readily available. A breaker help to maintain […]
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This is a Low Distortion Crystal Oscillator circuit. This circuit generate a sinewave that has low phase noise and distortion. This circuit can be used to perform a crystal with less than 1mV dissipated in crystal. The crystal is used to filter the signal current. If the impedance loads is low, the JFET will drive the impedance. when the loads […]
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This is a Voltage Controlled Oscillator (VCO) circuit. This circuit is based on Hartley oscillator. The frequency depend on the value of C1 and L1. The oscillation-frequency will change as the change of the capacitance in the varactor BB132 by The Vtuning voltage. The maximum frequency that can be changed is determined by th value of C2. For large frequency […]
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This is a frequency source system that is controlled by a digital (microprocessor/microcontroller) system. This circuit produces a square wave signal with adjustable frequencies. Here is the block diagram of digitally controlled frequency source system: This frequencies are controlled by microcontroller register, counter or thumb-wheel switches. This system can be used in many applications like numerically-controlled machine tools and computer-controlled […]
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