FIELD: electricity.
SUBSTANCE: invention relates to power electronics, in particular to the devices forming an information signal on value of loading current and can be used in power key PWM control circuits in AC/DC impulse input voltage converters. The corrector of feedback current control signal contains the transformer current sensor connected to the power key circuit with a power key control unit, comprising a primary winding intended for receipt of the measured current impulses, while its secondary winding is connected to a load through a resistor shunted rectifier, with current feedback formation.
EFFECT: formation of the control signal in the current protection mode for restriction of output power at its same value independent from the value of input voltage.
12 dwg
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