High Current/High Voltage OPAMP with Boost Output Current Greater Than 1A

High Current/High Voltage OPAMP with Boost Output Current Greater Than 1A

This project provides High Voltage and High Current output swing. The board is built using OPA454 OPAMP and 2 x high current NPN/PNP BJT Transistors. Output transistors Q1 and Q2 provide positive and negative output currents to the load. The project works with an input power supply up...

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PI Temperature Control Amplifier for Thermoelectric Cooler (TEC) Driver

PI Temperature Control Amplifier for Thermoelectric Cooler (TEC) Driver

This is a simple Proportional, Integral (PI) temperature control amplifier. A complete thermoelectric cooler (TEC) controller can be created using this PI amplifier and OPA569 Power Op-Amp or other output amplifiers such as DRV591, DRV592 and DRV593. Proportional-integrator...

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1.091
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Unipolar-to-Bipolar Level Translator 0V to 5V Unipolar to ±10V Bipolar Converter

Unipolar-to-Bipolar Level Translator 0V to 5V Unipolar to ±10V Bipolar Converter

This design is intended to translate a small unipolar signal to a wide bipolar signal. A common application is to translate a 0 to 5V DAC output to a ±10V bipolar signal. All resistors are 1% but it is advisable to select 0.1% 20 ppm/°C resistors for good gain, offset accuracy, and...

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1.064
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High-Voltage (180V) – High-Current (30mA) Operational Amplifier Module

High-Voltage (180V) – High-Current (30mA) Operational Amplifier Module

This project provides a platform to evaluate the OPA462 high-voltage, high-current operational amplifier. Multiple component footprints allow the most common circuit configurations. The board accommodates high-voltage and high-current operational amplifier OPA462 from Texas...

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1.091
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Photo Diode Amplifier

Photo Diode Amplifier

This small module is a photodiode amplifier. The circuit consists of an OPAMP configured as a transimpedance amplifier for amplifying the light-dependent current of the photodiode. A small bias voltage is derived from the positive supply and applied to the op amp’s non-inverting...

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1.197
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DC Electronic Load – 1A

DC Electronic Load – 1A

This is a very precise Electronic Load project built using the ultra-Precision, Low-Noise OPAMP MAX44251 from Analog Devices. The project can sink current from a power source. It can be used as test gear for power supplies, chargers, solar panels, batteries, and DC-DC converters. The...

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1.167
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Accurate Acoustic Sensor – Sound Frequency to Voltage Converter

Accurate Acoustic Sensor – Sound Frequency to Voltage Converter

The project presented here is a sensitive sound sensor. The circuit converts sound frequency and outputs DC voltage.  The board consists of LM358 OPAMP and LM2907 IC. LM358 is used as a dual-stage microphone preamplifier and LM2907 acts as a frequency to voltage converter. The...

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1.514
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Cooling Fan Controller Using Temperature Sensor LM35

Cooling Fan Controller Using Temperature Sensor LM35

The project presented here is a low-cost solution for heat management of the heatsink and various equipment that requires automatic control of a cooling Fan. The project is built using a very cheap LM358 OPAMP. LM358 is used as a comparator, and a trimmer PR1 is provided to set the...

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2.105
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