Technology

FS319

Rev0.3 Dec.29, 2005(LF)

P

H-BRIDGE TRANSISTOR OUTPUT

The Fig 6 is the circuit diagram of H-bridge transistors. The single-phase motor rotation

depends on a switching current of coil L1. When the magnetic pole is N pole, Q2, Q3, Q5 is

turn-off and Q1, Q4, Q6 is turn-on, L1 has a current from SO to NO. And when the magnetic

pole is S pole, Q1, Q4, Q6 is turn-off and Q2, Q3 is turn-on, L1 has a current from NO to

SO.

VCC

L1

Q1

Q2

Q3

Q4

Q5

Q6

NO

SO

GND

DPNO

DPSO

PNO

PSO

Fig 6 H-Bridge Transistors Output