该静止变流器前级采用推挽正激式变换器，后级采用双降压式逆变器。
The first stage is push pull forward converter, and the second stage is a dual buck inverter(DBI).
本实用新型涉及双极电凝器，属于医疗仪器，由晶体管构成双管推挽主振电路。
The utility model relates to a bipolar electrocoagulator which belongs to a medical apparatus. A double tube push-pull principal oscillation circuit is composed of a transistor.
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