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US 5,309,030 AGranted
Current source for a supplemental inflatable restraint system
AssigneeDelco Electronics Corporation
InventorFrederich H. Schultz
Life of this patent
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AssigneeDelco Electronics Corporation
InventorFrederich H. Schultz
Estimating the term…
A supplemental inflatable restraint system with a controllable current source comprises a sense element, a switch device coupled to the sense element, and a squib coupled to the switch device, wherein the sense element, switch device and squib are coupled in a series circuit between a power source and a ground. A deploy control circuit is coupled to the switch device, and, in response to a deploy command, forward biases the switch device allowing electric current to flow through the sense element, switch device and squib to deploy a supplemental inflatable restraint. A current control circuit is coupled to the sense element and switch device and responds to the current flow through the sense element and regulates the switch device, effectively limiting current through the series circuit to a predetermined value.
Deployment apparatus for a supplemental inflatable restraint, comprising:
A controllable current source for a supplemental inflatable restraint system, comprising:
A method of supplying current for deployment of a supplemental inflatable restraint, comprising the steps of:
Dependencies are inferred from the claim text.