Industry News
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Why is the switching power supply using a high-frequency transformer small in size?
The reasons for the small volume of switching power supplies using high-frequency transformers mainly include the following aspects: 1. The high-frequency transformer in the switching power supply works at a frequency much higher than the power frequency (such as 50/60Hz), usually at a few kHz to...Read more -
What if MOS is overcharged when switching power supply cuts load? Try this method!
The prototype main control IC for this debugging is a CR6842S, which is a highly integrated current control PWM controller, which can be used for medium to large off-line power converter. The main features are: low starting current, built-in soft start, green mode unique frequency conversion and ...Read more -
The difference of winding structure between traditional transformer and high power density transformer
As we all know, the transformer is a static electrical equipment used to transform AC voltage and current and transmit AC power. However, the traditional transformer and the high power density transformer are different, because the content is too much, this paper only describes the winding struct...Read more -
Analysis of the impedance ratio and power of audio transformers
First of all, the audio transformer can be understood literally as a transformer working in the audio range. The audio transformer can convert the voltage like a power transformer and can achieve audio model coupling. Due to some characteristics of the product itself, it is not recommended to use...Read more -
About high-frequency transformer
Analysis Can SPWM signal affect high-frequency transformers? Different from PWM, SPWM is a more mature and widely used technology. An important theoretical basis of SPWM is to use different narrow pulses to impact the inertial links. In this process, can the SPWM signal be transformed by a high-f...Read more -
Flyback transformer design
This article mainly introduces the whole process of Flyback transformer design. Let’s study it carefully! 1. Input conditions Maximum input voltage Vinmax: 310V Minimum input voltage Vinmin: 110V First output voltage Vo1: 5V First output diode voltage drop VD1: 0.7V First output curren...Read more -
What is the impact of using a high-frequency transformer in a low-frequency circuit?
This article will focus on the detailed description of the test methods of low-frequency transformers and high-frequency transformers, hoping to be helpful to you. Low-frequency transformer Low-frequency transformers are used to transmit signal voltage and signal power, and can also achieve impe...Read more -
The heart of the switching power supply module – switching transformer
Analysis of high-frequency switching power supply transformer In the electronic products we come into contact with daily, we can find a large number of magnetic core components, among which there is the heart of the switching power supply module - the switching transfor...Read more -
Switching power supply composition principle + circuit diagram analysis (Part 2)
（A）The composition principle of the switching power supply 1.1 Input circuit Linear filter circuit, surge current suppression circuit, rectifier circuit. Function: Convert the input grid AC power supply into the DC input power supply of the switching power supply that meets the requirements. 1....Read more -
What are the main factors causing abnormal noise in high-frequency transformers?
High-frequency transformers sometimes make noise during operation, and one of the reasons for this is the cooler. Because the fan generates noise, the human ear is of course more sensitive to this broadband harmonic than the harmonics generated by the core frequency. The dominant frequency depen...Read more -
How to understand that ideal transformers do not store energy, but inductors can store electromagnetic energy?
First of all, regarding whether energy can be stored, let’s look at the difference between ideal transformers and actual operating transformers: 1. Definition and characteristics of ideal transformers Common drawing methods of ideal transformers An ideal transformer is an idealized circuit...Read more -
Working principle of switching power supply + circuit diagram analysis
1. Overview of Switching Power Supply Switching power supply is a high-frequency electrical energy conversion device, also known as switching power supply or switching converter. It switches the input voltage into a high-frequency pulse signal through a high-speed switching tube, and then convert...Read more