DRIVE CIRCUIT FOR FAST SWITCHING OF DARLINGTON-CONNECTED TRANSISTORS - Patent 0245473

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EP 0 245 473 A1

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(43)	Date of publication:
	19.11.1987 Bulletin 1987/47

(21)	Application number: 86907157.0

(22)	Date of filing: 10.11.1986

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International Patent Classification (IPC):

H02M 7/ 537^{( . )}
H03K 17/ 0412^{( . )}

H03K 17/ 04^{( . )}
H03K 17/ 615^{( . )}

(86)	International application number:
	PCT/US1986/002428

(87)	International publication number:
	WO 1987/003153 (21.05.1987 Gazette 1987/11)

(84)	Designated Contracting States:
	FR GB IT

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Priority:

13.11.1985 US 19850797625

(71)	Applicant: SUNDSTRAND CORPORATION
	Rockford, Illinois 61125 (US)

(72)	Inventors:
	SHEKHAWAT, Sampat, S. Rockford, IL 61103 (US) DHYANCHAND, P., John Rockford, IL 61107 (US)

(74)	Representative: Marshall, John Grahame, et al
	SERJEANTS 25 The Crescent King Street Leicester LE1 6RX Leicester LE1 6RX (GB)

(54)	DRIVE CIRCUIT FOR FAST SWITCHING OF DARLINGTON-CONNECTED TRANSISTORS