Converter having low loss snubber
摘要
說(shuō)明書
The low loss snubber includes a clamping winding, a first capacitor, a second capacitor, a first diode, a second diode, a third diode, and a first inductor.
The first capacitor is electrically connected between an anode of the first diode and a first node connected by the primary winding and the switch. A cathode of the first diode is electrically connected to the input terminal.
A cathode of the third diode is electrically connected to the anode of the first diode. The first inductor is electrically connected between an anode of the third diode and a cathode of the second diode.
The second capacitor is electrically connected between the cathode of the second diode and the ground.
The clamping winding is magnetically coupled with the primary winding, and the clamping winding is electrically connected between the ground and an anode of the second diode.
The secondary winding is magnetically coupled with the primary winding and the clamping winding, and the secondary winding is electrically connected between the first output terminal and the second output terminal.
The input terminal is further electrically connected to a power source to receive electric power from the power source. The first output terminal and the second output terminal are further electrically connected to a load to transmit electric power to the load.
When the switch is turned on, the power source may provide a primary current flowing through a series circuit including the primary winding and the switch connected to the ground. Further, the second capacitor may charge the first capacitor through the first inductor and the third diode.
