Power device

A power supply device and power supply technology, applied in the direction of circuit devices, emergency power supply arrangements, data switching current sources, etc., can solve problems such as voltage instability, affecting the use of network power receiving end equipment, poor power supply effect, etc., to achieve stable power supply effect Effect

Inactive Publication Date: 2012-05-16
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, within the above reaction time, the equipment at the receiving end of the network may be restarted due to the unstable voltage supplied by the power supply device, which has not reached its rated voltage, and the power supply effect is not good, and the use of the receiving end equipment on the network may be affected.

Method used

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Embodiment Construction

[0039] Such as figure 1 As shown, the power supply device 10 of the present invention is set in the network power receiving end device 30 for supplying power to the load 31 in the network power receiving end device 30 .

[0040] The power supply device 10 includes a first input terminal 11 , a second input terminal 13 , a main control circuit 15 and an output terminal 17 . The first input terminal 11 is connected to a first power source (not shown) to obtain electric energy. The second input terminal 13 is connected to a second power source (not shown) to obtain electric energy. The output terminal 17 is connected to a load 31 to provide an output voltage to the load 31 . The main control circuit 15 is electrically connected to the first input terminal 11 and the second input terminal 13, and the main control circuit 15 cuts off the first input terminal 11 and the second input terminal 13 when the voltage connected to the second input terminal 13 reaches a preset voltage. Th...

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PUM

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Abstract

The invention discloses a power device, which is used for supplying power for a load of network power receiving end equipment. The power device comprises a first input end, a second input end, an output end and a master control circuit, wherein the first input end is connected to a first power supply to obtain electric energy; the second input end is connected to a second power supply to obtain electric energy; the output end is connected to the load to supply an output voltage to the load; the master control circuit is connected to the first input end, the second input end and the output end and detects the voltage of the second input end; and when the voltage of the second input end exceeds a preset value, the connection of the first input end and the first power supply is cut off to supply the electric energy provided by the second power supply to the load.

Description

technical field [0001] The present invention relates to a power supply device, in particular to a power supply device for network power receiving terminal equipment (Power device, PD) such as network storage. Background technique [0002] The power supply devices of existing network storage devices (Power device, PD) can usually obtain power through the following two methods: one is to directly connect to a DC power supply (which can be converted from mains power through an adapter) to obtain power The second is to connect to the remote Power Over Ethernet (POE) system through the network cable to obtain electric energy. Generally, when the power supply device supplies power to the equipment at the receiving end of the network, it first detects whether the power supply device has been connected to the DC power supply through its main control circuit. If the power supply device is connected to the DC power supply, the power supply device will be preferentially supplied by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/10H02J9/06
CPCH02J1/10H04L12/40039
Inventor 冯岚毅潘亚军
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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