Portable Calibrator: Stable 10V Reference

A stable voltage source is needed in many calibration process. Most electronic devices are affected by its surrounding temperature. To control all the components temperature by manipulating the surrounding temperature is not easy, but fortunately we can control only the most critical component to produce a stable voltage. The most critical component in a voltage reference is the reference diode, […]

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Supply Voltage Monitor with 555 IC

This is a supply voltage monitor circuit, an indicator to show if the power supply is in good condition. Designed using the IC 555 timer, this circuit will flash the LED1 when the supply voltage surpass preset level.¬† With flashing indicator, at least there will be two benefits, first, the power consumption will be lower since the indicator doesn’t have […]

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