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US 12,435,956 B2Granted
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 signal generator circuit, comprising:
- a current source circuit comprising one of:
- a charge storage device, a high-side driver module, and a transistor;
- a first driver circuit connected to the current source circuit at a first node and comprising:
- a first switch device connected in series with a second switch device at a second node;
- and
- a first charge storage device connected between the first switch device and the second switch device;
- and
- a second driver circuit connected to the current source circuit at the first node and comprising:
- a third switch device connected in series with a fourth switch device at a third node;
- and
- a second charge storage device connected between the third switch device and the fourth switch device, wherein when the first switch device is driven in a closed state, the first node is electrically coupled to the second node via the first switch device.
8 more elements
A method for operating a conducted electrical weapon, comprising:
- generating a stimulus signal at a first terminal comprising:
- charging a charge storage device;
- selectively turning on a first switch device according to a charge of the charge storage device;
- selectively turning off a second switch device according to the charge of the charge storage device, wherein the first switch device and the second switch device are connected in series with each other and connected to the first terminal;
- and
- selectively turning on a third switch device having a polarity opposite that of the first switch device, wherein the third switch device is connected to a second terminal and connected in parallel with the first switch device and the second switch device;
- and
- flowing current through a current path comprising the first switch device, the first terminal, the second terminal, and the third switch device according to a first control signal and the charge of the charge storage device.
5 more elements
A conducted electrical weapon (CEW), comprising:
- at least three electrodes configured to launch toward a target in response to activation of a trigger of the CEW;
- a signal generator circuit electrically connected to the at least three electrodes and responsive to the activation of the trigger of the CEW, and comprising:
- a current source circuit configured to generate a constant current;
- a first driver circuit connected to the current source circuit at a first node and comprising:
- a first switch device connected in series with a second switch device at a second node;
- a first charge storage device connected between the first switch device and the second switch device;
- and
- a first terminal connected at the second node and electrically connected to a first electrode from the at least three electrodes;
- and
- a second driver circuit connected to:
- the current source circuit at the first node;
- and
- the first driver circuit at a third node;
- wherein the second driver circuit comprises:
- a third switch device connected in series with a fourth switch device at a fourth node;
- a second charge storage device connected between the third switch device and the fourth switch device;
- and
- a second terminal connected at the fourth node and electrically connected to a second electrode from the at least three electrodes;
- wherein the current source circuit provides the constant current through a current flow path comprising the first switch device, the first terminal, the target, the second terminal, and the fourth switch device.
16 more elements
Dependencies are inferred from the claim text.