Power-dense bipolar high-voltage capacitor charger
View Patent ↗An exemplary rectifying capacitor multiplier is provided for high voltage. The multiplier includes first and second circuit boards, a series of diodes in pattern groups, first and second packs of capacitors, and a pair of high voltage terminals. The circuit boards are disposed mutually in parallel. The pattern groups are disposed between the first and second circuit boards, with the diodes concatenated in series. The packs are disposed respectively on the respective circuit boards. Each pack distributes a capacitor that connects to a corresponding pattern group. The terminals correspond to positive and negative output voltages and are disposed on opposite sides of the circuit boards.
1. A high voltage bipolar rectifying multiplier, said multiplier comprising:
first and second circuit boards disposed mutually in parallel;
a plurality of series-concatenated diodes in pattern groups disposed between said first and second circuit boards having positive and negative pads disposed at opposite sides of said boards, said pattern groups connected to said pads;
first and second packs of capacitors disposed respectively on said first and second circuit boards, each pack distributing a capacitor for connecting to a corresponding pattern group; and
positive and negative output high voltage terminals, said terminals connected to respective said pads of said first and second circuit boards.
2. The multiplier according to claim 1 , further including first and second voltage dividers at said opposite sides of respective said first and second circuit boards.
3. The multiplier according to claim 1 , wherein said each pack includes a bus bar to connect each said capacitor.
4. A passively balanced bipolar high voltage power supply (HVPS) for driving a switched capacitive load from a super capacitor, said HVPS comprising:
a full-wave inverter that includes four bridge circuits;
a resonance circuit;
a low leakage inductance transformer that includes nested bobbins wrapped by Litz wire; and
a bipolar rectifying multiplier that includes concatenated diodes and a pair of capacitor packs.