Free Simple Circuit Diagram
Today, simplicity and minimum controls is required for design of a handheld device. It will be very useful if a circuit allow us to turn the power on or of with a single push button. A single-pushbutton power control circuit that consist of only a few small components, and consumes little power is shown on circuit diagram below. A debouncer […]
Read moreLM111 comparator can be used o design a relay driver with TTL strobe, this can be used to provide more control of your relay driver. You can control the strobe input using a microcontroller or other digital signal. Here is the schematic diagram of the relay driver: [Source: National Semiconductor Application Note]
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This is a Driving Relay circuit using 555 IC. The circuit is used to drive a relay to avoid 555 hangs up, it uses an inductive feedback. The coil is prevented to drive Pin 3 below a negative 0.6V by a clamp diode that across the coil. However, in some case, this negative voltage maybe cause the timer to malfunction. […]
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This is a INA159 Dual-Polarity, Bidirectional Current-Shunt-Monitor Circuit. This circuit uses OPA340 because it has near rail-to-rail input and output swing ranges that allow the output voltage of the circut to approach 0 and 5V. The gain of OPA340 is set to +100 and the INA159 gain is +0.2V/V. This circuit has gain of +20V/V. Here is the circuit : […]
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