Sercomm Corporation

Kuo-Fu Weng

Meng-Chien Chiang

Chun-En Lin

Hsiao-Feng Pan

Ming-Hong Koo

A green bridge circuit for adjusting a DC power source and an AC power source is provided. The green bridge circuit includes a bridge circuit and a bias adjustment circuit. The bridge circuit includes four transistors connected to a first power terminal, a system load, and a second power terminal. The bias adjustment circuit has an input terminal coupled to an output terminal of the bridge circuit and an output terminal coupled to control terminals of the transistors. The bias adjustment circuit changes bias voltages of the control terminals of the transistors according to a rectified voltage outputted by the bridge circuit. In this way, loss is reduced, heat generation is prevented, and transmission loss is addressed.

Green bridge circuit for adjusting direct current power source and alternating current power source

A power sourcing equipment is provided. The power sourcing equipment is connected to an Ethernet cable. The power sourcing equipment includes a switching circuit, a power circuit, and a detection circuit. The power circuit is coupled to a power supply output terminal via the switching circuit. The detection circuit is configured to control a state of the switching circuit according to a first resistance between a first pin and a second pin of the Ethernet cable.

Power supply system, power sourcing equipment, and Ethernet Y cable

Power supply system, power sourcing equipment, and ethernet Y cable

The present invention relates to a shared interface device for Power Over Ethernet (POE) and a wireless network module, comprises a motherboard and an interface device used for inserting a POE card or a wireless interface card. The motherboard includes an Ethernet connection interface, a signal processing unit, a logical conversion unit and an external power supply interface. When signals and power from an external network are transmitted via the Ethernet connection interface to the interface device, these signals and power will be further transmitted into the POE card for filtering to capture the power. Then, the captured power will be fed back to the interface device and transmitted via the logical conversion unit to the motherboard for use; when the logical conversion unit receives the power from the external power supply interface, the power is provided for the wireless interface card and the motherboard for use. Such shared design will effectively reduce complexity of circuit layout in the motherboard and lower costs for enterprises in developing a set of independent modules separately.

Growing community of inventors

Taipei, Taiwan

Kuo-Fu Weng