ENERGY-SAVING POWER CONVERTER

摘要

An energy-saving power converter includes a first switch unit, a transformer primary side, a transformer secondary side, a diode subunit, a switch subunit, a comparison unit, a current sensor, and a resistor. The transformer primary side starts storing energy when the first switch unit is turned on. The transformer secondary side sends a secondary side current to the current sensor through the diode subunit when the first switch unit is turned off. The current sensor informs the comparison unit and the resistor when the current sensor senses the secondary side current. The resistor is used to transform the secondary side current into voltage form for entering the comparison unit. The comparison unit is configured to turn on the switch subunit, so that the secondary side current is passing through the switch subunit.

主权项

1. An energy-saving power converter applied to a power supply apparatus and a load apparatus, the energy-saving power converter including:
a transformer having a transformer primary side and a transformer secondary side, the transformer primary side electrically connected to the power supply apparatus; a first switch unit electrically connected to the transformer primary side; a second switch unit having a diode subunit and a switch subunit, the diode subunit electrically connected to the transformer secondary side, the switch subunit electrically connected to the transformer secondary side and the diode subunit; a comparison unit having a comparison unit output side, a comparison unit first input side, and a comparison unit second input side, the comparison unit output side electrically connected to the switch subunit; a current sensor electrically connected to the diode subunit, the switch subunit, the comparison unit first input side, the comparison unit second input side, and the load apparatus; and a resistor electrically connected to the comparison unit first input side, the comparison unit second input side, and the current sensor, wherein the transformer primary side starts storing energy when the first switch unit is turned on; the transformer secondary side sends a secondary side current to the current sensor through the diode subunit when the first switch unit is turned off; the current sensor informs the comparison unit and the resistor when the current sensor senses the secondary side current; the resistor is used to transform the secondary side current into voltage form for entering the comparison unit; the comparison unit is configured to turn on the switch subunit, so that the secondary side current is passing through the switch subunit.