Back to results
US 11,888,469 B2Granted
Power device and electrical appliance
AssigneesGd Midea Air-Conditioning Equipment Co., Ltd., Midea Group Co., Ltd.
InventorYuxiang Feng
Life of this patent
Estimating the term…
Abstract
A power device and an electrical appliance are provided. The power device has a control input terminal, a first driving circuit and a second driving circuit. When the control input terminal is connected to a high level or a low level, the first driving circuit and the second driving circuit output a high/low level signal in a first voltage range or a high/low level signal in a second voltage range. The first voltage range is different from the second voltage range.
Claims18
A power device comprising:
- a control input terminal;
- an upper bridge arm switch tube and a lower bridge arm switch tube;
- an upper resistor group and a lower resistor group;
- a first driving circuit, connected to the control input terminal and the upper bridge arm switch tube through the upper resistor group;
- and
- a second driving circuit, connected to the control input terminal and the lower bridge arm switch tube through the lower resistor group,
- wherein:
- the control input terminal is connectable to a high level or a low level,
- when the control input terminal is connected to the high level, the first driving circuit and the second driving circuit output a high/low level signal in a first voltage range,
- when the control input terminal is connected to the low level, the first driving circuit and the second driving circuit output a high/low level signal in a second voltage range, and
- the first voltage range is different from the second voltage range, and
- wherein:
- when the upper bridge arm switch tube and the lower bridge arm switch tube each comprise a GaN device, a high level is input to the control input terminal, and
- when the upper bridge arm switch tube and the lower bridge arm switch tube each comprise a Si device, a low level is input to the control input terminal.
11 more elements
An electrical appliance comprising:
- a power device and a processor connected to the power device,
- wherein the power device comprises:
- a control input terminal;
- an upper bridge arm switch tube and a lower bridge arm switch tube;
- an upper resistor group and a lower resistor group;
- a first driving circuit, connected to the control input terminal and connected to the upper bridge arm switch tube through the upper resistor group;
- and
- a second driving circuit, connected to the control input terminal and connected to the lower bridge arm switch tube through the lower resistor group,
- wherein:
- the control input terminal is connectable to a high level or a low level,
- when the control input terminal is connected to the high level, the first driving circuit and the second driving circuit output a high/low level signal in a first voltage range, and
- when the control input terminal is connected to the low level, the first driving circuit and the second driving circuit output a high/low level signal in a second voltage range,
- wherein the first voltage range is different from the second voltage range, and
- wherein:
- when the upper bridge arm switch tube and the lower bridge arm switch tube each comprise a GaN device, a high level is input to the control input terminal, and
- when the upper bridge arm switch tube and the lower bridge arm switch tube each comprise a Si device, a low level is input to the control input terminal.
13 more elements
Dependencies are inferred from the claim text.