# what is the equation switched capacitors

by dddd12349999
Tags: capacitors, equation, switched
 P: 2 HELLO what is the equation that describes the relation between the charging current i(vdd) and that switched capacitors ( c1,c2,c3,c4,c5) if we put into consideration that switches are closing in sequence switch 1,switch 2, . . .switch 5 with a delay time of td thanks Attached Thumbnails
 P: 382 There is a problem with your circuit. When the second capacitor is switched, there is an infinite current through the switch.
 P: 2 can we think about it as a variable capacitor?
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## what is the equation switched capacitors

 Quote by dddd12349999 HELLO what is the equation that describes the relation between the charging current i(vdd) and that switched capacitors ( c1,c2,c3,c4,c5) if we put into consideration that switches are closing in sequence switch 1,switch 2, . . .switch 5 with a delay time of td thanks

 Quote by Carl Pugh There is a problem with your circuit. When the second capacitor is switched, there is an infinite current through the switch.
That's only for an instant.

When the switch for C2 is closed, the voltages across C1 & C2 become equal to each other virtually instantaneously. Then the pair continue to be charged for that point.

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