Free Simple Circuit Diagram
On the circuit diagram below show us a schematic of step-down circuit which is used to approximately divide by two the rms voltage between the line input and the inductive load (L1). C2 and R3 give a turn-on delay of approximately 7 ms. The diode bridge, with diodes D1 and D2 and R2 resistors have a function to discharge C2 […]
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Not only a summing circuits, but there are also subtracting circuits. Here’s the circuit diagram: Subtracting circuit is a common application which is used to eliminate the vocal track (recorded at equal levels in both channels) from stereo recordings. R1 = R3 and R2 = R4, Vout = (R2/R1)(Vin2 – Vin1) R1||R2 = R3||R4 for minimum error due to input […]
Read moreCold junction compensation in thermocouple is needed when the cold junction is not kept on a constant temperature. Rather that to provide temperature stabilizer on the junction, correcting the error by measuring the cold junction temperature is cheaper. Here is one of the circuits for such solution: We can follow these steps to adjust the circuit: Adjust R1 for the […]
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The basis of an audio mixer is an inverting summing circuit below. For real audio mixers, a single-supply voltage is seldom used. To increase dynamic range, the designer will often push an op amp up to, and sometimes beyond it’s recommended voltage rails. Noninverting summing circuits are not recommended, but it’s possible to use. The source impedance becomes one of […]
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