Flat capacitor for an implantable medical device
First Claim
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1. A capacitor comprising:
- a first flat stack of capacitive elements where each element comprises flat anode plate and a flat cathode plate with an electrolyte interposed therebetween; and
,a second flat stack of capacitive elements, wherein the first and second flat stacks are enclosed in separate compartments of a capacitor case that electrically isolate the electrolytes of each flat stack from one another, wherein the first and second stacks are in their separate compartments having a common wall, and wherein a cathode terminal of the first stack and a anode terminal of the second stack are electrically connected to the capacitor case such that the capacitance between an anode terminal of the first stack and a cathode terminal of the second stack is equivalent to the capacitance of each stack connected in series, the capacitor case being conductive and serving as an electrical connection between the stacks.
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Abstract
One aspect provides a capacitor having a first stack of capacitive elements a second stack of capacitive elements, wherein the first and second stacks are enclosed in separate compartments of a capacitor case that electrically isolate the electrolytes of each stack from one another.
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Citations
22 Claims
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1. A capacitor comprising:
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a first flat stack of capacitive elements where each element comprises flat anode plate and a flat cathode plate with an electrolyte interposed therebetween; and
,a second flat stack of capacitive elements, wherein the first and second flat stacks are enclosed in separate compartments of a capacitor case that electrically isolate the electrolytes of each flat stack from one another, wherein the first and second stacks are in their separate compartments having a common wall, and wherein a cathode terminal of the first stack and a anode terminal of the second stack are electrically connected to the capacitor case such that the capacitance between an anode terminal of the first stack and a cathode terminal of the second stack is equivalent to the capacitance of each stack connected in series, the capacitor case being conductive and serving as an electrical connection between the stacks. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for constructing a capacitor, comprising:
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providing a first flat stack of capacitive elements where each element comprises flat anode plate and a flat cathode plate with an electrolyte interposed therebetween; providing a second flat stack of capacitive elements; enclosing the first and second flat stacks in separate compartments of a capacitor case that electrically isolate the electrolytes of each compartment; electrically isolating the anode and cathode plates of each stack from the case; and
,for each stack, electrically connecting each anode plate by a conductor and each cathode plate by a separate conductor, the conductors being routed to respective anode and cathode terminals; and electrically connecting the cathode terminal of the first stack to the anode terminal of the second stack such that the capacitance between the anode terminal of the first stack and the cathode terminal of the second stack is equivalent to the capacitance of each stack connected in series. - View Dependent Claims (8, 9, 10, 11)
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12. A method for constructing a capacitor, comprising:
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providing a first flat stack of capacitive elements where each element comprises flat anode plate and a flat cathode plate with an electrolyte interposed therebetween; providing a second flat stack of capacitive elements; enclosing the first and second flat stacks in separate compartments of a capacitor case that electrically isolate the electrolytes of each compartment; electrically isolating the anode and cathode plates of each stack from the case; for each stack, electrically connecting each anode plate by a conductor and each cathode plate by a separate conductor, the conductors being routed to respective anode and cathode terminals; and electrically connecting the cathode terminal of the first stack and the anode terminal of the second stack to the case such that the capacitance between an anode terminal of the first stack and a cathode terminal of the second stack is equivalent to the capacitance of each stack connected in series, the case being conductive and serving as an electrical connection between the stacks. - View Dependent Claims (19, 20, 21, 22)
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13. A capacitor comprising:
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a conductive case including first and second electrically isolated compartments; a first flat stack of one or more flat capacitive elements in the first compartment; and a second flat stack of one or more flat capacitive elements in the second compartment, wherein a cathode terminal of the first stack and a anode terminal of the second stack are electrically connected to the conductive case such that the capacitance between an anode terminal of the first stack and a cathode terminal of the second stack is equivalent to the capacitance of each stack connected in series, the capacitor case serving as an electrical connection between the stacks. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification