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Main performance index of inductance coil
The use and distinction of inductor
Use the 1 induction coil is divided into three kinds, choke, filter, shock, choke: in the low frequency circuit to prevent low-frequency alternating current; pulsating DC to pure DC circuit; it is used in the middle of the output of the rectification circuit two filter capacitor, choke and capacitor II type filter circuit. In the high frequency circuit: is to prevent the high frequency current flows to the low frequency end, in the old type regenerative radio in the high frequency choke coil. Two, filter: the same theory; pulsating DC current flow is from pure DC circuit after rectification by choke (to simplify the circuit, reduce the cost, with the pure resistance for band choke capacitor (two) electrolytic capacitor) filter circuit composed of pie. Using the charging and discharging function of the capacitor and the current of the choke coil to block the AC current to achieve the smooth DC current and to obtain the pure DC power. Three, the shock: we say that the rectifier is the alternating current into direct current, then the shock is the direct current into alternating current process. We have completed the circuit called this process. The oscillator oscillator waveform: sine wave, sawtooth wave, trapezoidal wave, square wave, rectangular wave, spike wave. Frequency by several HZ- dozens of GHZ. in wired electric, radio field is widely used.
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