Variable DC voltage source

Abstract

The invention relates to a variable-direct-current power source, which comprises rectifier and characteristic resistance, wherein the rectifier comprises one voltage input pin, one voltage output pin, and one adjust pin; the resistance is connected between voltage output pin and adjusting pin; said invention also comprises one adjustable load, via which the adjusting pin is connected to ground; via changing the load value, the output voltage of output pin of rectifier can be change. The invention can adjust direct current power.

Description

【Technical field】

[0001] The invention relates to a direct current voltage source, in particular to a variable direct current voltage source with adjustable output voltage. 【Background technique】

[0002] After the hardware design of the electronic circuit is completed, various electrical characteristics of the circuit are usually tested to verify the reliability of the hardware. This test includes a chip voltage stability test. In the chip voltage stability test, the voltage input to each chip in the circuit is divided into several test voltage values ​​according to the rated maximum and minimum voltage range of the chip, and the required test voltage value is input into the chip to verify the stability of the circuit. During the test, an adjustable DC power supply (DCPOWER SUPPLY) that can display the output voltage value is required to supply voltage to the chip, and disconnect the voltage source according to the test progress, and manually adjust the above adjustable DC ...

Images