This is the Simple Universal Laboratory Power Supply Circuit Diagram. The value of the design lies in the use of IC1, an LM317HVK adjustable s.eries-pass voltage regulator, for broad-range performance remainder supplies voltage-setting...
Friday, January 10, 2014
Classroom Microphone
This Audio Amplifier circuit is useful in classrooms to reduce the strain of lecturing ,if the surrounding environment is noisy. It uses the power amplifier IC LM 380 that gives 2 watts output which is sufficient in a confined area....
Labels:
classroom,
microphone
Thursday, January 9, 2014
Electronic Telephone Ringer
This circuit produces a ringing sound similar to that made by more recent telephones. It consists of three almost identical oscillators connected in a chain, each generating a squarewave signal. The frequency of each oscillator depends...
Labels:
electronic,
ringer,
telephone
Voltage to Frequency Converter Circuit Diagram
Voltage to frequency converter circuit diagram has a 1 Hz-to-30 MHz output, 150-dB dynamic range, for a 0 to 5 V input. It maintains 0.08% linearity over its entire 71/3 decade range with a full-scale drift of about 20 ppm/°C. To...
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