UH477 Datasheet, PDF (6/6 Pages) Unisonic Technologies – SINGLE PHASE DC MOTOR DRIVE IC

UH477
Preliminary
LINEAR INTEGRATED CIRCUIT
„ FUNCTIONAL INFORMATION
H-Bridge Transistor Output
In the following figure, the diagram of H-bridge transistors is shown. The single-phase motor rotation is changed
by a switching current of coil L1.
When the magnetic pole is N pole, Q2, Q3, Q5 is shut off and Q1, Q4, Q6 is turn-on, the current flows through
L1 from SO to NO. And when the magnetic pole is S pole, Q1, Q4, Q6 is turn-off and Q2, Q3 is turned on.
The current flows through L1 from NO to SO.
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UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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