The switching frequency of switching power supply

The switching frequency is said that the inverter output voltage is actually a series of pulses, pulse width and spacing are not equal. The value depends on the intersection of the wave and the carrier. The higher the switching frequency, the more the number of pulses in a cycle, the smoother the current waveform is better, but the more interference to other devices.
Nonlinear power supply, switching power supply frequency is generally greater than 20KHZ, because to avoid the sound frequency 20KHZ, the market common frequency in 50KHZ–150KHZ, generally in the 60KHZ–90KHZ, more than the 100KHZ frequency of the power supply of the switch tube requirements to be high, the cost is high, so the general will be controlled within 100KHZ
Nonlinear power supply, switching power supply frequency is generally greater than 20KHZ, because to avoid the sound frequency 20KHZ, the market common frequency in 50KHZ–150KHZ, generally in the 60KHZ–90KHZ, more than the 100KHZ frequency of the power supply of the switch tube requirements to be high, the cost is high, so the general will be controlled within 100KHZ

Comments are closed.