With reference to FIG. 14, when the switch is closed, the primary winding Wp of the transformer is directly connected to the power source 23. The primary current Ip and the magnetic flux in the transformer increases, and energy from the power source 23 may be stored in the primary winding Wp of the transformer. The voltage induced in the secondary winding Ws reverse-biases the output diode Dout. The load may be supplied with energy by the output capacitor Cout.

Further, the capacitor C may discharge to produce a discharging current Idis to flow through the capacitor C and the resistor R. Since the second discharging current Idis flows through the capacitor C and the resistor R, the resistor R may have power dissipation, and electric power may be wasted.

An objective of the present invention is to provide a converter having a low loss snubber. The converter having the low loss snubber may reduce power consumption.

To achieve the foregoing objective, the converter having the low loss snubber includes an input terminal, the low loss snubber, a transformer with a primary winding and a secondary winding, a switch, a first output terminal, and a second output terminal.

The switch and the primary winding are electrically connected in series, and are electrically connected between the input terminal and a ground.