Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1998-07-06
2000-07-11
Zweizig, Jeffrey
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327110, 327584, H03K 508
Patent
active
060878770
ABSTRACT:
A trailing edge of a control signal of a transistor controller for controlling an output transistor is detected by an edge detector of a clamp controlling circuit. A surge voltage from a back electromotive voltage induced in an inductance L1 is absorbed from the output transistor, only for a given period immediately after the solenoid is turned off, by turning a switching transistor into an on-state by a timer to force a clamping circuit into conduction. At a normal operation, since the clamping circuit is cut off from an output terminal, the clamping voltage can be set in a manner to reduce to a normal voltage in an IGN-line. Therefore, a peak power value of a power loss caused by the surge voltage at the output transistor can be reduced, whereby generation of heat at the output transistor can be reduced. Therefore, the chip size of the power IC can be reduced.
REFERENCES:
patent: 5001373 (1991-03-01), Bator et al.
patent: 5162966 (1992-11-01), Fujihira
patent: 5500616 (1996-03-01), Ochi
patent: 5608595 (1997-03-01), Gourab et al.
patent: 5631187 (1997-05-01), Phipps et al.
patent: 5731729 (1998-03-01), Ochi
patent: 5764088 (1998-06-01), Lavieville et al.
patent: 5793232 (1998-08-01), Gallinari et al.
Gonda Tomohiko
Kiyota Shigeyuki
Nissan Motor Co,. Ltd.
Zweizig Jeffrey
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