Voltage to current converter OPAMP circuit

voltage controlled current source

Voltage to current converter is mostly used to transmit signals over a long distance to a control circuit. The most important reason behind it is that while traveling a long distance due to the internal resistance of the wire the voltage gets reduces. if there is a very small signal then it may get lost. But as we know that current never reduces while traveling a long distance due to Kirchhoff’s current law KCL. That’s why we use current to transmit signals over long distances through wires. Hence the voltage…

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Current to Voltage Converter(I to V)

current to voltage converter

A current to voltage converter circuit produces output voltage with respect to input current. An I to V converter is used to convert varying current into equivalent output voltage.  This circuit is very much useful when the measuring instrument can measure only voltages not the current and we want to measure the output current. The best example is measuring current through a circuit using Arduino. Here the Arduino can measure only analog voltage so we need a current to voltage converter to do that. such circuits are used in Data…

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Opamp as Differentiator (active differentiator)

opamp differentiator circuit

A differentiator opamp is an opamp configuration that produces a differentiated version of the signal applied to its input terminal. This process is exactly the opposite of integration. by interchanging the positions of components in an integrator circuit we can get a differentiator circuit. Here we’re going to discuss two types of differentiator circuit: Ideal differentiator Practical differentiator Ideal opamp as differentiator circuit: Circuit for ideal differentiator is as shown in the figure:   this circuit can perform the mathematical operation of differentiation on the input signal. The output is…

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OP AMP integrator

Op amp integrator

The circuit in which output voltage waveform is an integration of the input signal is called as an integrator or op-amp integrator or integrating amplifier. The output voltage is proportional to the amplitude and duration of the input signal. Ideal op amp Integrator Circuit:     The above circuit is obtained by replacing the feedback resistor RF in the inverting amplifier configuration by a capacitor Cf. We assume that opamp used here is an ideal one. V2 is at virtual ground potential. R1 is the input resistance and RL is…

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Voltage Follower OPAMP or buffer Amplifier

voltage follower opamp

OPAMP buffer or voltage follower is an opamp configuration whose gain is equal unity. Voltage follower is also known as unity gain amplifier, voltage buffer, opamp buffer, or an isolation amplifier. It is used to separate two circuits having the same voltage level but different impedance. In a voltage follower circuit output voltage and input voltage, both are equal. Due to this, the gain of the opamp is one (unity), and the amplifier does not amplify the input signal. This voltage follower circuit does not require any external components. What…

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Non Inverting Amplifier(OPAMPs)

Non Inverting opamp

A non-inverting amplifier is an OPAMP circuit configuration whose output is in phase with the input signal at the non-inverting input. The input signal is applied at the non-inverting input of the opamp. A non-inverting amplifier also acts as a voltage follower circuit. The non-inverting amplifiers also have negative feedback which is used to control the gain of the amplifier. Feedback contains a voltage divider circuit that provides a part of the output to the input terminal. This OPAMP has a high input impedance and a low output impedance. This…

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Inverting amplifier (OPAMPs)

The inverting amplifier is one of the types of closed-loop opamp configuration. In this configuration, the non-inverting (+ve) terminal of the opamp is connected to the ground, while the inverting terminal acts as input terminal. Negative feedback is present between the output terminal and  (-ve) inverting terminal of OPAMP. Importance of negative feedback in Inverting amplifier: The open-loop gain of an operational amplifier is very high up to 120 dB. Practically this gain is unstable and difficult to control. Get SEO Backlinks If we use the OPAMP in open loop…

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741 Op Amp, First Operational Amplifier IC

741 op amp(operational amplifier) IC is one of the most oldest and popular IC with high performance. It is used in various analog applications such as integrator and differentiator summing amplifier differentiator etc. Operational amplifier: An operational amplifier is a DC-coupled high-gain electronic voltage amplifier amplifier that has high gain, differential input, high input resistance, and low output resistance. Special features of IC 741: Frequency compensation is not required. Short circuit protection has been provided. It has offset voltage null capability. Large differential voltage gain. There is no latching. Pin…

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PWM controller for DC Motor using 555 timer IC

pwm motor speed control

Pulse Width Modulation PWM controller. PWM is a technique in which the amount of current going in a circuit can be controlled by chopping the Direct current using a gate or transistor that is changing its duty cycle( on-off time) you should see this article flashing of LED using 555 IC. This article is about how you can control the speed of a DC motor using PWM motor controller Must watch this video for better understanding.. This PWM circuit can be easily found in our daily life equipment like mobile…

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