Synchronous, continuous and adjustable power supply system

Abstract

The present invention provides a synchronous, continuous and adjustable power supply system. The synchronous, continuous and adjustable power supply system comprises a rectifying circuit, a PFC circuit, a disconnecting switch power supply, a low-noise adjustable power supply, a synchronizing pulse generator and a synchronizer trigger. The synchronous, continuous and adjustable power supply system enables the voltage outputted by the disconnecting switch power supply to be boosted and reduced via the low-noise adjustable power supply, so that the finally outputted voltage value is consistent with the voltage value set by a setter. A synchronous, continuous and adjustable power supply provided by the present invention, firstly possesses a low noise function and an efficient, continuous and stable adjustment function, and can solve the power supply oscillation problem in the 0V-90V continuous voltage adjustment and continuous current adjustment, secondly can realize a plurality of low-noise power supply systems and enables the PFC circuit and the disconnecting switch power supply to be controlled synchronously, and thirdly realizes the 100 Vac-240 Vac AC commercial power input and the 0 V-90 V continuous DC adjustable voltage output.

Description

technical field [0001] The present invention relates to the field of electronic technology, and more specifically, relates to a synchronous continuously adjustable power supply system. Background technique [0002] At this stage, adjustable power supplies are widely used in various fields. In many low-voltage, low-power electronic products, it is often necessary to generate a higher voltage locally, and sometimes even require the voltage to be continuously adjustable within a certain range, and to allow a The power supply supports multiple low-voltage, low-power electronic products at the same time, which has higher requirements for adjustable power supplies. [0003] The adjustable power supply realizes a wide range of voltage and current adjustment by widening the voltage and current of the switching power supply. The switching power supply is to control the switching tube to turn on and off the circuit through the circuit, and complete the high-efficiency energy transmis...

AI Technical Summary

Problems solved by technology

[0005] At present, there are power supplies realized by the method of initial adjustment of switching power supply and fine adjustment of linear power supply, but this kind of power supply can only output fixed voltage, and cannot realize adjustable output voltage

In order to realize the adjustable output voltage of the power supply, the adjustable power supply is realized by using the high voltage fixed output of the switching power supply, and then using the linear power supply as a step-down adjustment output, but its power consumption is large and the efficiency is low; and when multiple power supplies are connected in series, in It is also easy to cause switching power supply oscillation when the switching power supply and linear power supply are adjusted

Images