Technique for drive current stabilization of an automotive...

Details Technique for drive current stabilization of an automotive... Technique for drive current stabilization of an automotive...

2007-01-09

2007-01-09

Kwon, John T. (Department: 3747)

Internal-combustion engines

High tension ignition system

Current or voltage sensing in coil primary

C123S594000

Reexamination Certificate

active

10973769

ABSTRACT:
Drive current stabilization is achieved through the management of a drive current. The drive current may include a control current that is provided to a control terminal of a switch, a current limit input current that is provided to a current limit circuit associated with the switch and a stabilization current. The switch carries a load current responsive to a control signal on the control terminal. The magnitude of the control current is monitored and a magnitude of the stabilization current is increased responsive to a decrease in the magnitude of the control current to substantially maintain a magnitude of the drive current.

REFERENCES:
patent: 3938490 (1976-02-01), Snyder et al.
patent: 4579021 (1986-04-01), Yamamuro et al.
patent: 2004/0085068 (2004-05-01), Zhu et al.

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