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LM3915 Vibration Meter – Circuit Schematic
LM3915 Vibration Meter
A vibration meter circuit shown in the following schematic diagram uses LM3915 a the main active component. This vibration meter uses a piezoelectric.....
LM331 Frequency to Voltage Converter – Circuit Schematic
LM331 Frequency to Voltage Converter
The frequency to voltage converter circuit illustrated in the schematic diagram below produces a 10 V output for 10 kHz full scale input (square waves or pulses...
High/Low Voltage Probe – Circuit Schematic
High/Low Voltage Probe
Simple voltage probe circuit shown in the schematic diagram below very useful in testing, testing, or troubleshooting discrete  or integrated circuits,.....
Five-Decade Dynamic Light-Level Meter – Circuit Schematic
Five-Decade Dynamic Light-Level Meter
This is a Portable light-level meter circuit with five-decade dynamic range. This uses  a single cell battery as the power supply. To calibrate this circuit,.....
precision current loop thermocouple transmitter – Circuit Schematic
precision current loop thermocouple transmitter
Current loop analog data transmission is used in industrial environment because of its robustness (good noise immunity), while providing wiring fault detection....
Optical Pyrometer Detect The Spectrum Composition – Circuit Schematic
Optical Pyrometer Detect The Spectrum Composition
This pyrometer is used to measure an incandescent body. The principle for this measurement is that the hotter the body, the spectrum of the radiation will.....
Peak (Pulse) Voltmeter – Circuit Schematic
Peak (Pulse) Voltmeter
This is a Peak Voltmeter circuit. This circuit can be viewed as a pulse stretcher, which catch fast pulse signal to be measured by a slow response voltmeter.....
Continuity And Component Tester – Circuit Schematic
Continuity And Component Tester
This continuity tester gives a beep sound if detect an electric current conduction between its probes. Here is the schematic diagram of this audible.....
DC RMS And Peak-to-Peak High Impedance Voltmeter – Circuit Schematic
DC RMS And Peak-to-Peak High Impedance Voltmeter
Analog meter normally doesn`t have high impedance since they don`t have buffer circuit inside. With active buffering, the input impedance of this circuit.....
INA159 Dual-Polarity Bidirectional Current-Shunt-Monitor Circuit – Circuit Schematic
INA159 Dual-Polarity Bidirectional Current-Shunt-Monitor Circuit
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.....
INA159 Dual-Polarity Bidirectional Current-Shunt-Monitor Circuit – Circuit Schematic
INA159 Dual-Polarity Bidirectional Current-Shunt-Monitor Circuit
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.....
FETVM-FET Voltmeter – Circuit Schematic
FETVM-FET Voltmeter
This is a circuit of FETVM-FET Volmeter. The function of the VTVM is replaced by the FTEVM while at the same time ridding the usual line cord instrument. This.....
FETVM-FET Voltmeter – Circuit Schematic
FETVM-FET Voltmeter
This is a circuit of FETVM-FET Volmeter. The function of the VTVM is replaced by the FTEVM while at the same time ridding the usual line cord instrument. This.....
Temperature Probe for Digital Multi Meter – Circuit Schematic
Temperature Probe for Digital Multi Meter
This is a simple temperature measurement probe circuit. This circuit measures temperature either on a PC board or at the probe tip to which contains the.....
Temperature Probe for Digital Multi Meter – Circuit Schematic
Temperature Probe for Digital Multi Meter
This is a simple temperature measurement probe circuit. This circuit measures temperature either on a PC board or at the probe tip to which contains the.....
Self Powered Current Sensing – Circuit Schematic
Self Powered Current Sensing
This is a current sensing circuit that senses the current at the high side (between load and positive supply). This circuit     take advantage from.....
Self Powered Current Sensing – Circuit Schematic
Self Powered Current Sensing
This is a current sensing circuit that senses the current at the high side (between load and positive supply). This circuit     take advantage from.....
High DC Voltage Current Sensing – Circuit Schematic
High DC Voltage Current Sensing
LTC6101 op-amp can be used to build High voltage current monitoring/sensing. This circuit can senses current in 500 volts system. Here is the schematic diagram....
High DC Voltage Current Sensing – Circuit Schematic
High DC Voltage Current Sensing
LTC6101 op-amp can be used to build High voltage current monitoring/sensing. This circuit can senses current in 500 volts system. Here is the schematic diagram....
Autoranging Circuit – Circuit Schematic
Autoranging Circuit
To extend the measurement range of an available ADC(analog to digital conveter) we can use this autoranging. If it implemented on multiplexed input, this.....