| 摘要 |
FIELD: second power supply units for radio engineering, automation and computer engineering. SUBSTANCE: goal of invention is achieved by introduced additional saturation choke, which switches off secondary winding of power transformer from load during drop in power transmission from power supply. This prevents switch of magnetization current into secondary winding and improves usage of power accumulated in dissipation and magnetization inductance coil of power transformer in order to recharge by-pass power transistors of capacitors, thus providing switching power transistors for zero voltage. EFFECT: increased regulation range of output voltage, increased dynamic range without dynamic losses. 2 dwg
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