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Ten common problems and solutions when debugging switching power supplies

1. Transformer saturation Transformer saturation phenomenon: Start up under high voltage or low voltage input (including light load , heavy load, capacitive load), output short circuit, dynamic load, high temperature, etc., the current through the transformer (and switch tube) increases nonlinearl

Discussion on motor resolver (1)

The sensor as a sensing device plays an absolute role in the control. Reminiscent of motor controller, it generally contains temperature sensor, currentvoltage sensor, and is directly related to the electric control The motor also has a position sensor, which is what we often call a resolver, or res

Discussion on the working principle of resolver (2)

Continue to talk about the rotation. In the previous article, we learned about Ampere's law and Faraday's law of electromagnetic induction. Two new terms are introduced today: Hall effect and magnetoresistance effect. 01.Hall effect and magnetoresistance effectMagnetoresistance The definition of Mag

Talk about how the power supply works inside

In the process of power supply design and debugging, when we encounter problems, we should put our thoughts into the inside of the power supply, and if we are in the power control part, what should we do if we encounter such problems? solve. That is to consider the problem from the perspective of th

Basic Switching Power Supply Topology (3) - The Essence of Topology

Fourth, basic switching power supply topology analysisFor switching power supply topology: inductor, switching tube The node between the diode and the diode is called the switching node; after the current flows into the node from the inductor, it can either flow out of the diode or the switch tube (

Key Points of Winding in Manufacturing Process of High Frequency Transformer

A、Determine the parameters of BOBBINB、All windings are required to be flat and non-overlapping.C、A single set of winding wires can be single-color wires, and double-set winding wires must be divided into two-color wires or open wires soaked in tin to avoid wrong windingD、The

High Frequency Transformer Design Principles

When designing a high frequency transformer, the leakage inductance and distributed capacitance of the transformer must be minimized, because the high-frequency transformer in the switching power supply transmits a high-frequency pulse square wave signal. During the transient process of

What is a high frequency transformer

High-frequency transformer is a power transformer whose working frequency exceeds intermediate frequency (10kHz). It is mainly used as high-frequency switching power transformer in high-frequency switching power supply, and also used as high-frequency inverter in high-frequency inverter po

TGHA002 ADSL Transformer

ADSL TransformerRoHS compliance productEN60950 Basic Insulation Compliant-250VrmsOperating temperature range:-400C to +850CNo.TypeMountingTurns RatioOCL10KHz 0.1VLength(mm)Width(mm)Height(mm)TGHA002VDSLTH1.6: 1±2%410uH ±5%14 MAX14.5 MAX13.5 MAX