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Amp Voltage Follower – Circuit Schematic
Amp Voltage Follower
A simple power op amps to 300 Hz operation. One type of circuit is more difficult to protect the flow regulator. Because it`s been fixed, the normal protections...
Simple Voltage comparator using CA3140 – Circuit Schematic
Simple Voltage comparator using CA3140
This circuit is a circuit diagram indicates when the input voltage differs from two defined limits, V1 and V2. The limits that can be adjusted and the circuit i...
Voltage Level Indicators for battery Using LM324 – Circuit Schematic
Voltage Level Indicators for battery Using LM324
This circuit is a circuit diagram of an indicator to show battery voltage 12 volts. Working principle of this circuit is the battery voltage compared with the r...
Triangular Wave Generator Using Op-amp – Circuit Schematic
Triangular Wave Generator Using Op-amp
This is a circuit diagram of the triangular wave producing circuit. We can produce the triangular wave with a series of two Op-Amp. You can use the LM741 op-amp...
lm358 circuit – Circuit Schematic
lm358 circuit
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Single Op-Amp 3 Band Equalizer circuit – Circuit Schematic
Single Op-Amp 3 Band Equalizer circuit
This is a 3 Band Equalizer circuit. This circuit is made to control the treble, middle and bass range. This circuit uses a single op-amp. With single op-amp we....
Single Input to Differential Input Adapter for Digital Voltmeter – Circuit Schematic
Single Input to Differential Input Adapter for Digital Voltmeter
I some cases, a differential input is needed for voltage measurement. Using the only one operational amplifier, you can build an adapter to provide a floating....
Sine-Wave/Square-Wave Converter – Circuit Schematic
Sine-Wave/Square-Wave Converter
An op amp used as a comparator produces a 10-V p-p square-wave output with 100-mV input, to 15 kHz. Adjust R5 for symmetry of square wave at low input levels...
Simple Analog Multiplier Circuit Using LM107 – Circuit Schematic
Simple Analog Multiplier Circuit Using LM107
This circuit a simple analog multiplier, the circuit operation may be understood by considering A2 as a controlled gain amplifier, Analog Multiplier, Multiplier...
Schmitt Trigger Circuit – Circuit Schematic
Schmitt Trigger Circuit
This Schmitt trigger circuit is ``emitter coupled`` and provides a simple comparator action. The 2N3069 JFET places very little loading on the measured input. S...
Sample and Hold Circuit Using CA3140 Op-Amp – Circuit Schematic
Sample and Hold Circuit Using CA3140 Op-Amp
The schematic diagram below shows a very simple sample-and-hold circuit using the CA3140 as the readout amplifier for the memory capacitor. The CA3080A is used....
Power Function Circuit – Circuit Schematic
Power Function Circuit
We can generate easily many non-linear functions such as X^1/2, X^2, X^3, 1/X, XY and X/Y using logs. Division becomes subtraction, multiplication becomes....
Positive and Negative Peak Detector Circuit Using CA3130 Op-Amp – Circuit Schematic
Positive and Negative Peak Detector Circuit Using CA3130 Op-Amp
Implementing peak-detector circuits is very easy with the CA3130, as shown in schematic diagram of this circuit. The figure below shows the schematic diagram of...
Op Amp Classic Gain and Linearity Testing – Circuit Schematic
Op Amp Classic Gain and Linearity Testing
Diagram below shows you with a classic test fixture that has been used for long periods in order to give anyone for resolving the non-linearity errors for....
OP90 4 mA to 20 mA Current Loop Transmitter – Circuit Schematic
OP90 4 mA to 20 mA Current Loop Transmitter
An output of 4 mA to 20 mA that is linearly proportional to the input voltage is provided by the current transmitter on figure below. Line rejection is....
Negative Supply From Single Positive Supply – Circuit Schematic
Negative Supply From Single Positive Supply
Opamps are very useful. But one of their major drawbacks is the requirement of a dual supply. This seriously limits their applications in fields where a dual su...
LM358 IC Solar Controller – Circuit Schematic
LM358 IC Solar Controller
The following circuit shows about? LM358 IC Solar Controller Circuit Diagram. Features: also as a mobile communications base stations, convert ....
LM324 Connection Diagram – Circuit Schematic
LM324 Connection Diagram
The LM324N is one member of the LM324 family,this family consists of four independent, high gain,internally frequency compensated operational amplifiers which w...
IC4030-4031 Typical Operating Circuit Schematic and Datasheet – Circuit Schematic
IC4030-4031 Typical Operating Circuit Schematic and Datasheet
The diagram below shows video line driver typical operating circuit for the IC4030/4031 schematic. It uses the MAX4030E/MAX4031E with such unity-gain stable op ...
High Precision Voltage-to-Frequency Converter (VFC) Using CA3130 Op-Amps – Circuit Schematic
High Precision Voltage-to-Frequency Converter (VFC) Using CA3130 Op-Amps
Voltage to frequency is very useful in many situation, such as transmitting temperature measurement using standard voice radio transceiver. This circuit (see th...