Power supply controller and its method

A power supply controller and control method technology, applied in electrical program control, relays, circuits, etc., can solve the problems of electrical or equipment damage, inconvenient operation, affecting the normal power supply of the power grid, etc., to achieve the effect of improved safety and convenient operation

Inactive Publication Date: 2003-07-23
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a single device, the large current when it is turned on will not affect the power supply grid. In a system composed of multiple devices, if more than a certain number of devices are turned on at the same time, the large current generated will cause an impact on the power grid. Affect the normal power supply of the grid, and even cause damage to other electrical appliances or equipment in severe cases
In the past, in order to solve this kind of problem, the power switches can be manually operated one by one or a special power supply scheme can be adopted. It is very inconvenient to operate the power switch manually one by one, and once the power is off, the switches need to be disconnected one by one; Although the power supply scheme can solve the problem, it is expensive and complicated to implement

Method used

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  • Power supply controller and its method
  • Power supply controller and its method

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Embodiment Construction

[0014] figure 1 It is an electrical principle block diagram of a specific embodiment of the power supply controller of the present invention, and the power supply controller can centrally control 25 equipment power supplies (only 5 are drawn, and the remaining 20 are the same). It includes a microprocessor (MCU) 1, a relay / indicator driving circuit 2, a relay group 3 composed of 25 relays, a key processing circuit 4, a serial communication interface circuit 5, and a PC serial interface 6. Wherein, an electrically erasable programmable read-only memory (EEPROM) 12 and an analog / digital (A / D) conversion 11 are placed inside the MCU1.

[0015] The key processing circuit 4 divides the 25 control keys k1 to k25 (only one group is drawn, and the other four groups are the same) into 5 groups, each group having 5 circuits. The voltage dividing resistors R1, R2, R3, R4, R5 are connected in series between the power supply and the ground, and the ends of the control buttons k1, k2, k3, ...

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Abstract

The invention discloses the power supply controller including the microprocessor, the driver circuit of the relays and the relay group containing multiple relays. The controller also includes the keybuttons process circuit utilizes to input the commands for controlling the power supply switches. Based on the commands being received, the microprocessor outputs the corresponding controls signals to the driver circuit of the relays, making the switches of the relays on or off in order to reach the purpose of controlling power supplies of devices. With being carried out through the microprocessor, thus, local controlling operation is convenience. Meanwhile, the contradiction between the PC control and the local control is solved.

Description

technical field [0001] The invention relates to a power supply controller and a method, in particular to a power supply controller and a method for centrally controlling the power supplies of multiple devices. Background technique [0002] In some large-scale systems composed of multiple devices for special purposes, in order to facilitate operation and save manpower, it is required to centralize the power switches of each device and control them separately. In the past, in such a system, mechanical manual control was mostly used, that is, a mechanical toggle switch was used to control the power supply, which was very inconvenient to use and low in efficiency. In addition, in a large-scale system composed of multiple devices, many devices will generate a large current at the moment of starting up. For example, in a system composed of CRT TV sets, because the degaussing circuit starts to work when the CRT TV In a short period of time, a large curren...

Claims

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Application Information

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IPC IPC(8): G05B19/02H01H13/02H01H47/22
Inventor 贾学均陈永钢孙毅
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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