DEVICE FOR CHARGING STORAGE CAPACITOR (VERSIONS) Russian patent published in 2009 - IPC H03K3/53 H02M3/335 

FIELD: electricity.

SUBSTANCE: invention can be used for charging storage capacitors (SC) from limited power sources with simultaneous transformerless step-up of the charging voltage. The technical outcome is achieved by increasing rate of supply of energy from the source to the capacitor, as well as reduction of the rated power-to-size ratio of the primary source. Diode-capacitor rectifiers for voltage multiplier (DCRVM) are used in the proposed five versions of the charging device, which allow for charging the storage capacitor from single-phase, as well as different types of three-phase alternating current sources. The diode- capacitor rectifiers for voltage multiplier "slowly" charge the storage capacitor (for many periods of the supply voltage) with simultaneous transformerless step-up of charging voltage to 4 U_tf, 5 U_tf, 8.5 U_tf and 1 U_tf (where U_tf - is the amplitude of phase voltage of the source) while reducing requirements for insulating the source.

EFFECT: improved specific and technical-economic indicators.

5 cl, 8 dwg