Hon Hai Precision Industry Co., Ltd.

Hongfujin Precision Industry (Wuhan) Co., Ltd.

Jie Min

Chun-Sheng Chen

A main board slot power control circuit will select a lowest priority interface card from a plurality of interface cards to reduce operation frequency, when the system power consumption is found to be too large. The main board slot power control circuit includes a power supply module, a control module, and a plurality of slots. The plurality of interface cards is plugged into the plurality of slots. The control module applies different priorities to the plurality of interface cards. The power supply module detects and determines when the system power consumption is greater than a predetermined value, and the power supply module outputs a control signal to the control module accordingly. The control module selects the lowest priority interface card to reduce operation frequency according to the control signal, and then the next lowest and so on until power consumption is found to be sufficiently reduced.

Main board slot power control circuit

A power control system allowing multiple voltage levels from a single power adaptor includes a power supply device and an electronic device. The power supply device includes a power supply and a first power controller. The power supply is configured to supply power for a graphics card as an external renderer, and the first power controller is configured to output a voltage signal. The electronic device includes a second power controller electrically coupled to the first power controller and the second power controller is configured for obtaining the voltage signal from the first power controller. The first power controller can output a first voltage or a second voltage to the second power controller to supply power for the electronic device.

Power control system

Motherboard voltage testing device includes a power supply module for supplying a DC voltage, an illuminating module, and a switching module for detecting a DC voltage of a motherboard. A first terminal of the switching module is coupled to the power supply module, and a second opposite terminal of the switching module is coupled to the illuminating module. When the switching module detects the DC voltage of the motherboard is in the motherboard, the illuminating module is configured to receive the DC voltage of the power supply module to emit light, and when the switching module detects there is no remaining DC voltage on the motherboard, the illuminating module cannot receive the DC voltage from the motherboard and the illuminating module is power off and does not emit light.

Motherboard voltage testing device

An electronic device includes a platform controller hub and a charging interface. The charging interface includes a connector for coupling to a peripheral device, and a charging integrated circuit coupled to the connector. The connector includes an insert detecting member for detecting if the peripheral device is inserted. The charging integrated circuit can provide power to the connector. The platform controller hub can exchange data through the connector through the charging integrated circuit. The charging integrated circuit can cut off the power to the connector when the insert detecting member detects that no peripheral device is inserted in the connector.

Electronic device and charging interface

A computer recovery circuit for a computer includes a detection circuit and a recovery control circuit. The detection circuit includes a first control terminal and a first output terminal. The recovery control circuit includes a second control terminal and a second output terminal. The detection circuit is configured to detect a working status of the computer. The first control terminal is configured to receive the first voltage signal of a first voltage level when the computer malfunctions. The first output terminal is configured to output a control signal of a first voltage level to the second output terminal. The second output terminal outputs a recovery signal having a first voltage level to the south bridge chip, thereby causing the computer to restart.

Computer recovery circuit

An alarm system for power supply includes a power supply unit, an electronic device, a control unit, and a switch unit. The power supply unit includes a battery. The battery outputs a power supply voltage. The power supply receives a standby DC voltage, and outputs a first voltage level signal according to the standby DC voltage and the power supply voltage. The electronic device outputs a second voltage level signal. The control unit receives the first voltage level signal and the second voltage level signal, and outputs a control signal in accordance. The switch unit receives the control signal, and sounds alert when there is no electric charge in the battery.

Alarm system for power supply

An anti-leakage supply circuit which avoids any power leakage to earth includes an interface, a management chip configured to detect a working state of a computer, a motherboard power supply configured to supply power to the interface and the management chip, and a control circuit coupled to the management chip. The control circuit is coupled between the motherboard power supply and the interface. The management chip is configured to output a signal to the control circuit when the computer is in standby state which disconnects the motherboard power supply and the interface.

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Wuhan, China

Jie Min