Resonant bilateral charging and discharging circuit
First Claim
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1. A charging and discharging circuit for a capacitive load, comprising:
- (a) an inductance coupled to an output node;
(b) a bilateral switch coupling said inductance to a supply voltage; and
(c) a controller switching said bilateral switch, wherein said controller provides turn on and turn off pulses for said bilateral switch with pulse duration for both turn on and turn off pulses equal to about π
√
(LC) with L said inductance and C the capacitance at said output node.
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Abstract
A bilateral switch (302) plus inductance (304) to drive a capacitive load (306 plus 350) by resonant charging and discharging the load.
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Citations
10 Claims
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1. A charging and discharging circuit for a capacitive load, comprising:
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(a) an inductance coupled to an output node; (b) a bilateral switch coupling said inductance to a supply voltage; and (c) a controller switching said bilateral switch, wherein said controller provides turn on and turn off pulses for said bilateral switch with pulse duration for both turn on and turn off pulses equal to about π
√
(LC) with L said inductance and C the capacitance at said output node. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of charging and discharging a capacitive load, comprising the steps of:
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(a) connecting a discharged capacitive load to a voltage supply through an inductance to charge said capacitive load; (b) disconnecting said capacitive load from said voltage supply after a time interval of about π
√
(LC) with L said inductance and C the capacitance at said load;(c) connecting said charged capacitive load to a voltage supply through said inductance; and (d) disconnecting said capacitive load from said voltage supply after a time interval of about π
√
(LC). - View Dependent Claims (8, 9, 10)
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Specification