Active load regulator, 8-20 volts 0,2-3,0 amperes. Scheme, description

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Active load regulator, 8-20 volts 0,2-3,0 amperes. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Regulators of current, voltage, power

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Below is a diagram of the active load controller.

(click to enlarge)

The current regulation range is 0,2 - 3,0 A. The operating voltage range is 8-20 V. After setting the required current, the device automatically maintains the current in the specified range. Chip U2 is required to be installed on the heatsink. Current adjustment is carried out by potentiometer R2. It is desirable to install load resistances in a place where heat exchange with the environment would be ensured. During operation, the temperature at the load resistances can reach up to 80-100 °C.

Coil inductance 100 mH (52 kHz 3A)

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