Delta Electronics (shanghai) Co., Ltd

Delta Electronics, Inc.

Chongfeng Zheng

Jianping Ying

Chao Yan

Yiqing Ye

Jianhong Zeng

Shouyu Hong

Min Zhou

Pengkai Ji

Qingdong Chen

Ganyu Zhou

Weicheng Zhou

Minghui Dai

Wulong Cong

Zhiqiang Zhan

Sansan Guo

A driving circuit for driving a switch element, which includes a control terminal, a first power terminal and a second power terminal. The second power terminal receives a first voltage. The driving circuit includes a switching circuit, a first unidirectional switch and a first capacitor. The switching circuit receives a first signal. The switching circuit is electrically connected with a first voltage terminal and a ground terminal. The first voltage terminal receives a second voltage. A voltage at the output terminal is switched between the second voltage and a ground voltage. A first terminal of the first unidirectional switch receives a third voltage. A first terminal of the first capacitor is connected with the output terminal of the switching circuit. A second terminal of the first capacitor is connected with a second terminal of the first unidirectional switch and the control terminal of the first switch element.

Driving circuit

The present disclosure provides a power supply system and an electronic device. The power supply system is used to supply power to a load and includes a system board where the load is disposed; a substrate; at least one output capacitor surface-mounted on the second side of the system board; at least one positive output conductive-connected region disposed on the first side of the substrate, and being electrically connected to one terminal of the at least one output capacitor; at least one negative output conductive-connected region disposed on the first side of the substrate, and being electrically connected to other terminal of the at least one output capacitor; and at least one power unit disposed on the second side of the substrate, and being electrically connected to the at least one positive output conductive-connected region and the at least one negative output conductive-connected region.

Power supply system and electronic device

In one aspect of the present invention, a converter circuit with input voltage balance includes a plurality of modules having inputs electrically series-connected to each other and outputs electrically parallel-connected to each other and a plurality of switching circuits with each electrically connected to an input connection node of a corresponding module and its immediate next module, and configured such that when an input voltage of the corresponding module or its immediate next module is in a desired range from a first predetermine value to a second predetermined value greater than the first predetermined value, the switching circuit operates in an open state, while when the input voltage is out of the desired range, the switching circuit operates in a conductive state so as to regulate the input voltage of the corresponding module or its immediate next module in the desired range.

Converter with input voltage balance circuit

An energy recycle system for use with an AC current power supply, for example, an electronic ballast, is presented. The energy recycle system includes an energy recycle load connected to an output terminal of the AC current power supply, in which the energy recycle load includes a rectifier for rectifying the output AC current of the AC current power supply into a rectified DC current and a filter connected to the rectifier for removing the high-frequency harmonics from the rectified DC current. Also, the energy recycle system further includes a DC-AC converter connected to the energy recycle load for receiving the DC current outputted from the energy recycle load, which is in turn delivered to the utility grid to achieve energy recycling.

Energy recycle system for use with AC current power supply

Growing community of inventors

Shanghai, China

Chongfeng Zheng