Methods and apparatus for a high voltage circuit
AssigneeAxon Enterprise, Inc.
InventorsMagne H. Nerheim, Varun Sathyanarayan, Ryan Markle
Life of this patent
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Abstract
A conducted electrical weapon (“CEW”) comprises one or more switch devices and a charge storage circuit for delivering a stimulus signal via a deployed electrode. A charge may be stored in the charge storage circuit. A first switch device of the one or more switch devices may be selectively turned on according to the charge of the charge storage circuit. The stimulus signal may be delivered via a current flow path comprising the first switch device and the deployed electrode according to the charge of the charge storage circuit.
Claims20
A conducted electrical weapon (CEW), comprising:
- a plurality of electrodes configured to launch toward a target;
- a signal generator circuit electrically connected to the plurality of electrodes, and comprising:
- a current source circuit configured to generate a stimulus signal;
- a first driver circuit connected to the current source circuit and comprising:
- a first terminal electrically connected to a first electrode of the plurality of electrodes;
- a first switch device electrically connected between the current source circuit and the first terminal;
- and
- a charge storage circuit connected to the first switch device to provide a charge to the first switch device;
- and
- a processing circuit coupled to the signal generator circuit and configured to perform operations comprising:
- providing an enable signal to the first switch device of the charge storage circuit;
- in accordance with the enable signal, storing the charge in the charge storage circuit;
- disabling the enable signal after the enable signal is provided to the charge storage circuit;
- and
- enabling the current source circuit to provide the stimulus signal through the first switch device, the first terminal, the first electrode, and the target;
- wherein the stimulus signal is provided via the first switch device in accordance with the charge, and wherein enabling the current source circuit comprises enabling the current source circuit after the charge is stored in the charge storage circuit and the enable signal is disabled.
A method for operating a conducted electrical weapon, comprising:
- storing a charge in a charge storage circuit of the conducted electrical weapon in accordance with an enable signal;
- selectively turning on a first switch device;
- disabling the enable signal;
- and
- delivering a stimulus signal through the first switch device, a first terminal of the conducted electrical weapon electrically coupled to the first switch device, and an electrode of the conducted electrical weapon electrically coupled to the first terminal;
- wherein the first switch device remains turned on according to the charge after the enable signal is disabled.
A signal generator circuit for a conducted electrical weapon, comprising:
- a current source circuit configured to generate a stimulus signal;
- a first driver circuit connected to the current source circuit and comprising:
- a first terminal configured to be electrically coupled to a first electrode deployed by the conducted electrical weapon toward a target;
- a first switch device electrically connected in series between the current source circuit and the first terminal;
- and
- a charge storage circuit connected to the first switch device to provide a charge to the first switch device, wherein the charge storage circuit comprises at least one capacitor coupled in parallel between a control terminal of the first switch device and an output terminal of the first switch device;
- and
- a second terminal configured to be electrically coupled to a second electrode deployed by the conducted electrical weapon;
- wherein the signal generator circuit is configured to perform operations comprising:
- storing the charge in the charge storage circuit;
- and
- after the charge is stored in the charge storage circuit, providing the stimulus signal through the first switch device, the first terminal, the first electrode, the target, the second electrode, and the second terminal according to the charge.
Dependencies are inferred from the claim text.