| 摘要 |
Supply device providing a regulated DC or AC voltage, of variable amplitude, from a non-stabilised DC source and containing switches with MOS transistors or similar components, energising reactive circuits in order to provide a periodic voltage, characterised in that it associates, in a differential set-up, two identical switch set-ups Q1-Q2, L1-C1-C2-C5-C6 and Q3-Q4, L2-C3 to C8 which operate as constant-frequency continuous-wave oscillators and means of adjustable phase-shifting between the two equal frequencies for controlling the switching. <IMAGE>
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