发射电流稳定器是一种能维持灯丝发射电流稳定的灯丝供电电源,它广泛地用于电离真空计和离子源中。目前绝大部分国产电离计电源仍使用着效率极低的连续调整式稳定电路,因此仪器发热严重,不得不采用巨大的散热片,甚至使用风冷。这样,不仅仪器显得笨重,而且危及装在同一机箱内的静电计放大器,增加它的漂移。在目前使用的开关型发射电流稳定器中,大都是先整流、滤波,然后用周期性导通和截 The emission current stabilizer is a filament power supply that maintains stable filament firing current and is widely used in ionization gauges and ion sources. At present, most of the domestic ionization meter power supply still uses a continuously adjustable stable circuit with extremely low efficiency. Therefore, the apparatus has serious heat and has to use a huge heat sink or even air-cooled. In this way, not only is the instrument bulky, but it also jeopardizes the electrometer amplifiers housed within the same enclosure, increasing its drift. In the current use of the switch emitter current stabilizer, most of the first rectifier, filter, and then use the periodic conduction and cut