Switching power circuit and computer system
AssigneeASUSTeK COMPUTER INC.
InventorsSHENG-CHIEH SU, JUNG-TAI CHEN
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Abstract
The invention relates to a switching power circuit connected to a motherboard of a computer system. The switching power circuit includes a PWM circuit and a snubber circuit. The PWM circuit includes a phase terminal, and it may output an output voltage to the motherboard via the phase terminal. The snubber circuit includes a zener diode. A negative terminal of the zener diode is connected to the phase terminal, and a positive terminal is connected to the ground terminal. The level of a breakdown voltage of the zener diode is equal to the level of the output voltage in a steady state.
Claims16
A switching power circuit connected to a motherboard of a computer system, comprising:
- a pulse width modulation (PWM) circuit including a phase terminal, wherein the PWM circuit outputs an output voltage to the motherboard via the phase terminal;
- and
- a snubber circuit including a zener diode, wherein a negative terminal of the zener diode is connected to the phase terminal, and a positive terminal is connected to a ground terminal.
A computer system, comprising:
- a motherboard;
- a PWM circuit including a phase terminal, wherein the PWM circuit outputs an output voltage to the motherboard via the phase terminal;
- and
- a snubber circuit further including a zener diode, wherein a negative terminal of the zener diode is connected to the phase terminal, and a positive terminal of the zener diode is connected to a ground terminal.
Dependencies are inferred from the claim text.