Active discharge systems and methods
First Claim
1. A system comprising:
- an electrical pulse delivery circuit; and
a control circuit coupled to said electrical pulse delivery circuit and controlling said electrical pulse delivery circuit to provide output operation and active discharge operation, wherein said control circuit causes at least one of a pulse duration, a pulse voltage magnitude, and a pulse current magnitude to be different between a pulse of said output operation and a corresponding pulse of said active discharge operation.
1 Assignment
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Accused Products
Abstract
To avoid charge accumulation on capacitive connections to implanted electrodes during delivery of stimulation pulses, stimulation pulses are followed by active discharge pulses having opposite polarity of the stimulation pulses. The active discharge pulses preferably have at least one pulse attribute magnitude (e.g., duration, voltage, and/or current) different than a corresponding stimulation pulse and are preferably programmable. Approximately the same total net current flow is delivered during active discharge pulses as during the stimulation pulses, but in the opposite direction and optionally at a lower amplitude. In addition, by reducing the driving voltage and a variable load within the electrical path for delivery of the pulses, power dissipation during active discharge is preferably reduced.
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Citations
20 Claims
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1. A system comprising:
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an electrical pulse delivery circuit; and
a control circuit coupled to said electrical pulse delivery circuit and controlling said electrical pulse delivery circuit to provide output operation and active discharge operation, wherein said control circuit causes at least one of a pulse duration, a pulse voltage magnitude, and a pulse current magnitude to be different between a pulse of said output operation and a corresponding pulse of said active discharge operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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an electrical pulse delivery circuit; and
a control circuit coupled to said electrical pulse delivery circuit and controlling said electrical pulse delivery circuit to provide an output pulse having a pulse attribute magnitude which is different than a pulse attribute magnitude of a corresponding active discharge pulse. - View Dependent Claims (10, 11, 12, 13)
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14. A method comprising:
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providing an output pulse having at least a first predetermined pulse attribute magnitude; and
providing an active discharge pulse having at least a second predetermined pulse attribute magnitude, wherein said first predetermined pulse attribute magnitude is different than said second predetermined pulse magnitude. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification