| 摘要 |
FIELD: electricity. ^ SUBSTANCE: high-voltage stabiliser of DC voltage, comprising stabilising element, voltage converter connected to stabilising element and to primary winding of a transformer, the secondary winding of which is connected to valve-capacitor unit. Two sections of switch unit are connected to outlet of valve-capacitor unit, making it possible to change polarity of output voltage relative to a common wire. Voltage divider is connected to outlet. Unit of inversion is arranged at an operational amplifier (OA). Inverting inlet of OA is connected via the third section of switch unit to divider outlet, and outlet in its turn, through the fourth section of switch - to metre of feedback signal. Lower point of voltage divider is connected to OA outlet and the fourth section of switch. An auxiliary rectifier, outlet of which is connected to metre of feedback signal, is connected to the third winding of transformer. ^ EFFECT: possibility to produce stabilised voltage of positive or negative polarity, which makes it possible to energise high-voltage devices with a supply that varies in polarity, and provision of a low potential in metering and control circuits independently on voltage polarity at the outlet. ^ 2 dwg |
