US 2026/0312582 A1Published application

Hybrid switch device

AssigneeDelta Electronics, Inc.

InventorsChang-Yi CHENG, Tsai-Sheng LIN, Tao WANG, Ye TIAN, Junwen CHEN

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Abstract

A hybrid switch device includes a first switch component, a second switch component, and a controller. The first switch component is independently controlled. The second switch component is connected to the first switch component in parallel, and the second switch component is independently controlled. The controller provides a control signal to respectively control the first switch component and the second switch component according to a power operating point of an operating curve. Under a light load below the power operating point, the control signal controls the first switch component to be turned on, and under a heavy load above the power operating point, the control signal controls the second switch component to be turned on so as to optimize switching performance under hybrid operation of the first switch component and the second switch component.

Claims14

Dependent claims

A hybrid switch device comprising:

a first switch component independently controlled,
a second switch component connected to the first switch component in parallel and independently controlled, and
a controller configured to provide a control signal to respectively control the first switch component and the second switch component according to a power operating point of an operating curve,
wherein forward characteristics of the first switch component and the second switch component are that below the power operating point, a forward current of the first switch component is higher than a forward current of the second switch component at the same forward voltage;
above the power operating point, the forward current of the first switch component is lower than the forward current of the second switch component at the same forward voltage;
under a light load below the power operating point, the control signal is configured to turn on the first switch component;
under a heavy load above the power operating point, the control signal is configured to turn on the second switch component so as to optimize switching performance under hybrid operation of the first switch component and the second switch component.

4 more elements

Dependencies are inferred from the claim text.