Basic knowledge of switching regulators - Delixi

Create Date: 2024-8-30 12:03:23|Source: Delixi

1. What is a switching regulator?

Switching regulator, English (regulatior), some people call it a regulator, a voltage regulator source. From the automatic control theory, we know that when the voltage rises, it will be lowered through negative feedback, and when the voltage drops, it will be raised, so as to form a control loop. As shown in the diagram, the block diagram is PWM (pulse width control method), of course, there are others such as: PFM (frequency control method), phase shift control method, etc.

                            Basic knowledge of switching regulators - Delixi

2. The primary classification of switching regulators

ACCORDING TO THE RELATIONSHIP BETWEEN THE INPUT VOLTAGE AND THE OUTPUT VOLTAGE, SWITCHING REGULATORS ARE MAINLY DIVIDED INTO BUCK TYPE AND BOOST TYPE, AND BUCK/BOOST TYPE (BUCK/BOOST), AND THIS ARTICLE FIRST CLARIFIES THE FIRST TWO.

3. Modulation method of switching regulator

PWM: A simple way to periodically change the turn-on and turn-off times of a switch

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