Power source short-circuit protector

A technology for protection device and power supply short circuit, applied in the field of power supply, which can solve the problems of power supply side loss, power supply damage, fuse burnt fuse, etc.
CN1399379AInactive Publication Date: 2003-02-26ZTE CORP
0 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2003-02-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The short-circuit protector for power source includes a comparing control circuit and a change controlling circuit. In the change controlling circuit, the change executing circuit has input connected to the output of the power source module and the output connected to the inputs of the comparing control circuit and the power source output circuit. The state detecting and controlling circuit of the comparing control circuit picks up signal from the output of the change executing circuit, and the output together with the output of the reference circuit is connected to the input of the output circuit. When being short-circuited, the power source is cut off automatically to protect both the power source and the powered part. In addition, there can be alarm function.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of power supply technology, in particular to the protection circuit technology in the power supply technology. Background technique

[0002] In many fields such as industrial automation control, medical equipment, communication, aerospace and daily household appliances, the power supply provides the power for all electronic products; the short-circuit protection of the power supply is an important means to ensure the reliability of electronic products. An important direction for various power supply manufacturers to explore. At present, many manufacturers realize the short-circuit protection of the power supply by adding a fuse or a resettable fuse or a thermistor to the output circuit of the power supply, such as the United States Tencent Technology Company, Shenzhen Heda Zhongqitong Power Technology Co., Ltd. and other power supplies produced. Constant current protection or voltage limiting and current limiting pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More