What is a pulse power supply?

Pulse voltage refers to the short-term abrupt change of voltage or current. Common pulse shapes are rectangular pulse, square wave pulse, sharp pulse (positive sharp pulse and negative sharp pulse), sawtooth pulse, step pulse, intermittent sine pulse and so on. The pulse voltage is abrupt and discontinuous! The pulse voltage waveform is a square wave, beating like a human pulse!

The higher the field strength, the easier it is for gas medium to produce local ionization breakdown and spark discharge. Using high voltage pulse power supply can improve the electric field breakdown voltage of space operation.

Extended data:

When the pulse voltage is applied to the gas, when the pulse voltage rises to the breakdown voltage U0 (static breakdown voltage) under the action of continuous voltage, the electric field gap does not break down immediately, but it takes td time to complete the breakdown.

T 1=ts+tf is the discharge delay. Ts is the statistical time delay, that is, the time from t0 to the appearance of an effective electron in the gap; Tf is the time delay of discharge formation, that is, the time from the appearance of effective electrons causing strong ionization process to the complete breakdown of the gap. The total discharge time consists of t0, ts and tf.

Because of the long discharge delay of extremely uneven electric field and the short duration of pulse power supply voltage, the discharge delay can not be ignored. For the pulse voltage applied to the electric field, after a period of time (discharge delay td), the voltage provided by the pulse power supply is greater than the static breakdown voltage U0, which can continue to provide the electric field energy required by the discharge electrode to generate effective electrons, and the electric field breaks down.

Reference source: Baidu Encyclopedia-Pulse voltage

Reference source: Baidu Encyclopedia-Pulse