Introduction to the knowledge of power chip

First, the power chip is an integrated circuit chip, mainly used to control and manage the power supply and protection and other functions. They are commonly used in various electronic devices, such as computers, mobile phones, digital cameras, automotive electronics and so on.

Two, the common power chip includes switching power supply control chip, voltage regulator chip, battery management chip, etc. They can be used alone or in conjunction with other chips and circuits to provide a stable and reliable power supply for electronic devices.

Three, power chip principle:

It involves "the law of volt-second balance of inductance voltage". The operating state of a power converter when the input, load, and control are fixed values is called steady state in a switching power supply. In steady state, the inductance in the power converter satisfies the law of inductance volt-second balance: For DC/DC power converter that has been working in steady state, the forward volt-second added to the filter inductor when the active switch is on must be equal to the reverse volt-second added to the inductor when the active switch is off. For example:Shenzhen YLZ production of JW3510 chip Jwalt 48V 3W DC DC wide voltage isolation power module transformer replacement LT8301,LM5180.

Four, the main role of the power chip:

1, provide driving signal, pulse width control, over voltage and over current protection functions;

2, some power chip integrated with a power tube in the interior, can directly drive the high-frequency transformer, this chip is generally a power limit;

3, there is another kind of power chip without power tube, need external power tube, this chip can make high power supply, can make more power depends on the choice of power tube and other external components.

For more knowledge about power chip, you can consult Zou Gong, senior design engineer of Shenzhen YLZ Technology Co., LTD.