Is there any solution to adjust the voltage accurately to 0.1V and start continuously and stably? ??? ? Help! ! ! !

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Is there any solution to adjust the voltage accurately to 0.1V and start continuously and stably? ??? ? Help! ! ! ! [Copy link]

Is there a solution to adjust the voltage accurately to 0.1V and continuously and stably? ??? ??? Help! !!! !!! The general voltage adjustment is jumpy, for example, 5.89V jumps directly to 3.61V, the amplitude is too large! !!! !!!

huo_hu

What?

maychang

The OP requires the power supply output step length to be 0.1V, what is the maximum V? This is very important.

maychang

In addition, is it AC or DC voltage regulation? This is also very important. If it is AC voltage regulation, is the frequency required to be adjustable? What is the frequency adjustment range? What is the output power required?

chunyang

The original poster's description of the problem is unclear. If you want to get timely and effective help, please describe the problem correctly and completely first.

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maychang posted on 2020-7-25 18:16 The OP requires the power supply output step size to be 0.1V, what is the maximum V? This is very important.

0-30V, 0-48V and 0-60V

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maychang posted on 2020-7-25 18:17 In addition, is it AC voltage regulation or DC voltage regulation? This is also very important. If it is AC voltage regulation, is the frequency required to be adjustable? What is the frequency adjustment range? Output power...

It is DC in the range of 150W -400W

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A transformer or switching power supply is used as the output to make a circuit with adjustable voltage, but the voltage regulation is too rough and the voltage is stepped in a jumpy way, which is not very suitable. I need help with a circuit with high voltage regulation accuracy, preferably with an accuracy of 0.1V and stable and progressive voltage regulation? ? ? ! ! !

maychang

Accurate to one decimal place Published on 2020-7-25 19:24 0-30V, 0-48V and 0-60V

0～30V, step length 0.1V, that is, a total of 300 steps are required. 0～60V, step length 0.1V, a total of 600 steps are required. Such a power supply can be made. A linear voltage regulator is required. And the linear voltage regulator also has to output 400W of power, so the size of this power supply will not be very small.

However, there is always a trade-off. The efficiency of such a power supply cannot be very high. This is the price that must be paid.