Voltage control device

Abstract

The invention discloses a voltage control device for controlling a power circuit to output a voltage to a central processing unit (CPU) to test an operating voltage range of the CPU. The voltage control device comprises a power supply unit and a coding unit, wherein the power supply unit is used for supplying an operating voltage to the voltage control device; the coding unit comprises a programmable singlechip, a plurality of parallel switches and a plurality of first push switches; the plurality of parallel switches and the plurality of first push switches are connected with the programmable singlechip; the programmable singlechip comprises a setting module, a modification module and an output module; the setting module is used for receiving the operation of a user and recording an initial code of the coding unit; the modification module is used for controlling the initial code to continuously add a predetermined value or subtract the predetermined value according to the operation of the user on the first push switches so as to modify the initial code; and the output module is used for outputting the modified code to the power circuit according to the operation of the modification module and changing the operating voltage which is output to the CPU from the power circuit. The voltage control device facilitates the changing of a coding state by the user and improves working efficiency.

Description

technical field [0001] The invention relates to a control device, in particular to a voltage control device. Background technique [0002] A power supply output control chip (such as Intersil6333) is usually arranged on the main board of the computer. The control chip has a plurality of coding lines, and the main board outputs the corresponding power supply voltage to the CPU through the corresponding coding of the coding lines. However, in order to test the operating voltage range of the CPU, the output voltage needs to be changed by modifying the coding of the coding line. [0003] The existing method of modifying the encoding usually uses a jumper switch or a single-pole double-throw switch to control the on-off of the encoding line. Specifically, it is necessary to first solder the corresponding jumper cap switch or single-pole double-throw switch to the pin of the mainboard power control chip through a wire, and then modify the state of the jumper cap or switch corresp...

AI Technical Summary

Problems solved by technology

This method needs to be completed by plugging and unplugging the jumper or flipping the switch every time the code is modified. Because plugging and pulling out the jumper or flipping the switch is difficult to manually operate, especially when the conversion process of the two codes is complicated, For example, from code FC (11111010) to code FB (11110111), you need to modify FC to F8 and F9 transition states, and then change from F9 to FB state, which greatly increases the operation cycle and operation difficulty, and is easy to operate. Cause computer crash and reduce work efficiency

Images