Digital Frequency MeterCircuit
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DIGITAL VOLTMETER CIRCUIT
A basic digital voltmeter circuit using the Harris Semiconductor ICL7107 is shown. It has a 2-V range. Calibration consists of applying a known voltage of 1.2 V...
DIGITAL VOLTMETER CIRCUIT
A basic digital voltmeter circuit using the Harris Semiconductor ICL7107 is shown. It has a 2-V range. Calibration consists of applying a known voltage of 1.2 V...
DIGITAL TACHOMETER COUNTER
This circuit produces a readout for the digital tachometer circuit.IC9 is a 3-digit LED display driver,counter,and latch?IC8 drives the common?cathode LEDs,whic...
DIGITAL TACHOMETER COUNTER
This circuit produces a readout for the digital tachometer circuit.IC9 is a 3-digit LED display driver,counter,and latch?IC8 drives the common?cathode LEDs,whic...
DC capacitor tester circuit diagram composed of 555
DC capacitor tester circuit diagram composed of 555 is shown as the chart. The tester is composed of the pulse generator, one-shot, DC amplifier and meter indic...
DC capacitor tester circuit diagram composed of 555
DC capacitor tester circuit diagram composed of 555 is shown as the chart. The tester is composed of the pulse generator, one-shot, DC amplifier and meter indic...
Circuit Diagram of Audio Logic Level Probe Composed of 555
The above picture is audio logic level probe circuit, which is composed of voltage comparator, multivibrator, and piezoelectric ceramics HTD etc. The latter two...
Circuit Diagram of Audio Logic Level Probe Composed of 555
The above picture is audio logic level probe circuit, which is composed of voltage comparator, multivibrator, and piezoelectric ceramics HTD etc. The latter two...
BIKE SPEEDOMETER CIRCUIT
The proximity detector senses the passing of the PC board pieces as the wheel rotates, providing an output signal, which has a clean transition between high and...
BIKE SPEEDOMETER CIRCUIT
The proximity detector senses the passing of the PC board pieces as the wheel rotates, providing an output signal, which has a clean transition between high and...
Analog frequency meter circuit
The circuit can measure the frequency between 1. 5kHz ~ 500kHz by connecting C1 ~ C6 different capacitors. The maximum frequency is up to 1MHz. Transistor T1 ca...
Analog frequency meter circuit
The circuit can measure the frequency between 1. 5kHz ~ 500kHz by connecting C1 ~ C6 different capacitors. The maximum frequency is up to 1MHz. Transistor T1 ca...
Acousto-optic detector circuit to measure the crystal
The circuit is shown in Figure, which consists of capacitance three-point oscillator, isolation level, voltage doubler rectifier circuit and stereo sound circui...
Acousto-optic detector circuit to measure the crystal
The circuit is shown in Figure, which consists of capacitance three-point oscillator, isolation level, voltage doubler rectifier circuit and stereo sound circui...
ANALOG FREQUENCY METER
This 1-kHz linear-scale analog frequency meter circuit uses the 555 as a pulse counter. Frequency is read on M1, (or 1 mA meter) which can be calibrated to read...
ANALOG FREQUENCY METER
This 1-kHz linear-scale analog frequency meter circuit uses the 555 as a pulse counter. Frequency is read on M1, (or 1 mA meter) which can be calibrated to read...
AC measuring circuit diagram
The figures(a), (b) are as shown, they are AC measuring circuits. The 21(a) is a current measuring schematic diagram of magnetic balanced mode Hall device. If t...
AC measuring circuit diagram
The figures(a), (b) are as shown, they are AC measuring circuits. The 21(a) is a current measuring schematic diagram of magnetic balanced mode Hall device. If t...
555 ASTABLE_FREQUENCY METER
The circuit shown is a simple digital frequency meter, which indicates the frequency in hertz of an astable 555 timer. It could, perhaps, be adapted for other u...