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US 11,695,335 B2Granted
Hybrid boost converters
AssigneeHuawei Digital Power Technologies Co., Ltd.
InventorsDianbo Fu, Dong Chen
Life of this patent
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Abstract
A method comprises configuring a power converter to operate as a boost converter, the power converter comprising a low side switch and a high side switch, during a first dead time after turning off the low side switch and before turning on the high side switch, configuring the power converter such that a current of the power converter flows through a high speed diode, and after turning on the high side switch, configuring the power converter such that the current of the power converter flows through a low forward voltage drop diode.
Claims18
A method comprising:
- configuring a power converter to operate as a boost converter, the power converter comprising a low side switch and a high side switch;
- during a first dead time after turning off the low side switch and before turning on the high side switch, configuring the power converter such that a current of the power converter flows through a high speed diode, wherein the high speed diode is a silicon carbide (SiC) diode;
- and
- after turning on the high side switch, configuring the power converter such that the current of the power converter flows through a low forward voltage drop diode, wherein the low forward voltage drop diode is a Schottky diode.
1 more element
A method comprising:
- controlling a power converter to convert an input voltage into a regulated output voltage, wherein the regulated output voltage is higher than the input voltage and the power converter comprises a low side switch, a high side switch and an inductor;
- turning on the low side switch to store energy in the inductor;
- after turning off the low side switch and before turning on the high side switch, configuring the power converter such that a current of the power converter flows through a high speed diode, wherein the high speed diode is a silicon carbide (SiC) diode;
- and
- turning on the high side switch to release the energy stored in the inductor, wherein after turning on the high sided switch, the current of the power converter flows through a low forward voltage drop diode, wherein the low forward voltage drop diode is a Schottky diode.
2 more elements
A method comprising:
- configuring a power converter to operate as a boost converter, the power converter comprising an inductor, a low side switch and a hybrid device comprising a high side switch, a high speed diode and a low forward voltage drop diode;
- after turning off the low side switch and before turning on the high side switch, configuring the power converter such that a current of the power converter flows through the high speed diode, wherein the high speed diode is a silicon carbide (SiC) diode;
- and
- after turning on the high side switch, configuring the power converter such that the current of the power converter flows through the low forward voltage drop diode, wherein the low forward voltage drop diode is a Schottky diode.
1 more element
Dependencies are inferred from the claim text.