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UH477G-G04-K Datasheet(PDF) 6 Page - Unisonic Technologies

Part # UH477G-G04-K
Description  SINGLE PHASE DC MOTOR DRIVE IC
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UH477G-G04-K Datasheet(HTML) 6 Page - Unisonic Technologies

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UH477
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
6 of 6
www.unisonic.com.tw
QW-R109-028.b
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.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.


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