Control system of switching voltage regulator
A technology of control system and voltage stabilizer, applied in output power conversion device, conversion equipment without intermediate conversion to AC, conversion of DC power input to DC power output, etc., can solve problems such as increased manufacturing cost and failure of electronic components , to avoid overshoot or undershoot
Active Publication Date: 2019-12-17
NUVOTON
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Problems solved by technology
The commonly used voltage stabilizer in the market is a switching regulator, and the switching regulator is not easy to generate heat, and the voltage is adjusted by switching the switching elements in it, so as to stabilize the output voltage to the load element, but in the switching regulator Boosting is always accompanied by overshooting, which leads to failure of electronic components. Of course, other circuit components can be added to prevent overshooting, but it will increase the manufacturing cost. How to solve the above-mentioned crux point becomes a problem. unresolved issues
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[0071] The advantages, features, and technical methods achieved by the present invention will be described in more detail with reference to exemplary embodiments and accompanying drawings to make it easier to understand, and the present invention can be implemented in different forms, so it should not be understood as being limited to what is shown here The stated embodiments, on the contrary, for those skilled in the art, the provided embodiments will make the present disclosure more thorough, comprehensive and completely convey the scope of the present invention, and the present invention will only be defined by the patent scope of the application.
[0072] Such as figure 1 As shown, it is a block diagram of the first embodiment of the switching regulator control system of the present invention. In this embodiment, the switching regulator control system of the present invention includes an adjustable switched capacitor conversion circuit 10 , a difference generator 30 and a ...
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A control system of a switching voltage regulator includes an adjustable switched-capacitor conversion circuit, an error generator, and a controlling module. The adjustable switched-capacitor conversion circuit has a plurality of discrete conversion rates, and selects a corresponding conversion rate and outputs an output voltage according to a signal of the conversion rate. An error generator is connected to the adjustable switched-capacitor conversion circuit and compares the output voltage with an external reference voltage to obtain an error voltage. The controlling module is connected between the error generator and the adjustable switched-capacitor conversion circuit to store a plurality of control variable sets, and selects one of plurality of control variable sets according to the error voltage. Afterwards, the controlling module calculates to output the signal of the conversion rate and further adjust the output voltage according to the selected control variable sets.
Description
technical field [0001] The present invention relates to a control system of a voltage regulator, in particular, a control system for a switching voltage regulator. Background technique [0002] In the era of the prevalence of electronic technology, each electronic device has a specific voltage requirement, so a voltage regulator is required to adjust the voltage to meet its specification. The commonly used voltage stabilizer in the market is a switching regulator, and the switching regulator is not easy to generate heat, and the voltage is adjusted by switching the switching elements in it, so as to stabilize the output voltage to the load element, but in the switching regulator Boosting is always accompanied by overshooting, which leads to failure of electronic components. Of course, other circuit components can be added to prevent overshooting, but it will increase the manufacturing cost. How to solve the above-mentioned crux point becomes a problem. unresolved issues. ...
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IPC IPC(8): H02M3/07
CPCH02M3/073H02M3/077H02M3/07H02M1/0012H02M1/0025
Inventor 谢仲铭许伟展
Owner NUVOTON