(Original) Electronic vocabulary

This article collects and sorts out electronic professional vocabulary, and keeps updating ......
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I. Buck Converter
The buck converter is named after the output voltage of the Switched power supply is always less than the input voltage. The basic architecture is composed of a switch, an inductor connected to the switch, a ground-to-ground diode (Continuous-stream diode) and an output filter capacitor. The basic principle is: when the switch is turned on, the input voltage is charged by the C and E Poles (or D and S poles) of the switch. At this time, the polarity of the inductance is left positive and right negative. When the switch end, the energy storage inductance starts to discharge the load. At this time, the polarity of the inductance is left negative and right positive. The discharge current goes from the right end of the inductance to the ground, and then returns to the left end of the inductance through the continuous diode. The filter capacitor smoothly filters the pulsating DC voltage output by the inductor into a stable DC voltage.
Ii. dropout voltage
Input/Output differential pressure. For linear power supply, it is an important parameter of the low-voltage difference regulator (LVS. When the output voltage is stable, the lower the voltage difference, the better the performance of the linear voltage regulator. For example, for a voltage regulator with a low voltage difference of 5.0 V, the output voltage can be stabilized at V by inputting a voltage of v.
3. choke coil
The Inductance Coil that prevents alternating current. The high-frequency ac current can be controlled to let the low-frequency and DC pass through by the proportional relationship between the coil and the frequency. The air core, ferrite core, and silicon steel sheet core are used according to the frequency. It is called "filter throttling" during rectification; it is called "audio frequency throttling" when producing audio frequency current; it is called "high-frequency throttling" when producing high-frequency current ".
IV,Leakage Current

Leakage Current, capacitance, PN junction, CMOS analog switch IC and so on all have the leakage current parameter. Simply put, the smaller the value, the more precise the device.