Switch converter
AssigneesJoulwatt Technology Co., Ltd., Joulwatt Technology (Shanghai) Co., Ltd.
InventorsLinjue Li, Haitao Wen, Pitleong Wong
Life of this patent
Estimating the term…
Abstract
The present application discloses a switch converter, and the switch converter comprises a first switch transistor, a second switch transistor, and an inductor, and further comprises: an acquisition unit for acquiring voltage of at least one end of the inductor, to obtain a first sampling signal and a second sampling signal; an operation unit, to obtain a current sampling signal based on the first sampling signal and the second sampling signal. The current sampling method in the switch converter of the present disclosure is simple, not easily affected by noise interference, and it has low requirements for devices, and adapts to different converters.
Claims20
A switch converter, comprising at least a first switch transistor, a second switch transistor, and an inductor, wherein the switch converter further comprises:
- an acquisition unit for acquiring voltage of at least one end of the inductor, to obtain a first sampling signal and a second sampling signal;
- an operation unit, to perform operations on the first sampling signal and the second sampling signal to obtain a current sampling signal;
- a control circuit, to receive the current sampling signal for controlling the switching status of the first switch transistor and second switch transistor;
- and
- a third switch transistor and a fourth switch transistor which are connected,
- wherein, under the first switching status, the first switch transistor and the third switch transistor are turned on synchronously, and the second switch transistor and the fourth switch transistor are turned off synchronously;
- under the second switching status, the second switch transistor and the fourth switch transistor are turned on synchronously, and the first switch transistor and the third switch transistor are turned off synchronously.
Dependencies are inferred from the claim text.