How to systematically learn power management IC design

Switch is very important, many people like to design some of their favorite things according to their own style, such as clothes, ah, talking about clothes, nowadays, in order to be a trend, deliberately cut out a few holes in their own clothes. Clothes can be this weird design, then switching power supply design works how you design. There is no more trendy design? Think don't hear switching power supply design you should naturally think of its working principle. In that case, let's learn it! Switching power supply is the use of modern power electronics technology, control the switching tube turn on and off time ratio, maintain a stable output voltage of a power supply, switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET. With the development and innovation of power electronics technology, it makes the switching power supply technology is also in constant innovation. At present, switching power supply with small, lightweight and high efficiency is widely used in almost all electronic equipment, is today's electronic information industry rapid development of an indispensable power supply method. The main use of switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, electric power equipment, instruments, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LCD monitors, LED lamps and lanterns, communication equipment, audio-visual products, security monitoring, LED light bags, computer chassis, digital products and instrumentation, and so on. Fields. Principle of operation of the switching power supply process is quite easy to understand, in the linear power supply, so that the power transistors work in linear mode, unlike linear power supply, PWM switching power supply is to let the power transistors work in the state of on and off, in these two states, added to the power transistors on the volt-ampere product is very small (in the on-time, the voltage is low, the current is large; off-time, the voltage is high, the current is small)/ The volt-ampere product on the power device is the loss incurred on the power semiconductor device. Compared to linear power supplies, PWM switching power supplies work more efficiently by ? Chopper? which is realized by chopping the input DC voltage into pulses of amplitude equal to the amplitude of the input voltage. The duty cycle of the pulses is regulated by the controller of the switching power supply. Once the input voltage is chopped into an AC square wave, its amplitude can be raised or lowered by a transformer. The output voltage value can be increased by increasing the number of secondary windings of the transformer. Finally these AC waveforms are rectified and filtered to get the DC output voltage. The main purpose of the controller is to keep the output voltage stable and its working process is very similar to the linear form of controller. This means that the functional blocks of the controller, the voltage reference and the error amplifier, can be designed to be the same as a linear regulator. Where they differ is that the output of the error amplifier (the error voltage) goes through a voltage/pulse width conversion unit before driving the power tubes. After learning how switching power supply design works, what good suggestions or proposals do you have, why don't you tell us? Those places that are not perfect and need to be improved, you can also say it to discuss. We will listen carefully and make improvements. Come on, we are waiting for your suggestions, your suggestions may give us more help to learn switching power supply design principle of work of the children! Do not miss it, come to learn switching power supply design working principle, it is worth learning.