Darlington control circuit for multi-phase brushless dc motor

Details Darlington control circuit for multi-phase brushless dc motor Darlington control circuit for multi-phase brushless dc motor

H - Electricity

02

P

318/93

H02P 6/14 (2006.01)

Patent

CA 1172691

ABSTRACT OF THE DISCLOSURE The invention relates to a control circuit for a multi-phase load, particularly a two-phase brushless DC motor, wherein each phase comprises a controllable switching element of semi-conductor material, particularly of transistors in Darlington connection, and a load portion in series applied to a DC voltage source, and wherein the switching elements can be successively switched on and off in a cyclic sequence by switching pulses. In order to avoid the setting up of spark interferences during the switching operations of the switching elements a dead time is disposed between all adjacent switching pulses in the switching sequence.

368091

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