NCV33033(2007) 데이터 시트보기 (PDF) - ON Semiconductor

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NCV33033
(Rev.:2007)

Brushless DC Motor Controller

ON Semiconductor 

MC33033, NCV33033

0

SA

Sensor Inputs

60°/120°

SB

Select Pin

Open SC

Rotor Electrical Position (Degrees)

60

120

180 240

300 360

420

480 540

600 660 720

Code 100 110 111 011 001 000 100 110 111 011 001 000

SA

Sensor Inputs SB

60°/120°

Select Pin

Grounded

SC

Code 100 110 010 011 001 101 100 110 010 011 001 101

AT

Top Drive

Outputs

BT

CT

AB

Bottom Drive

Outputs

BB

CB

Conducting

Power Switch

Transistors

Q1 + Q6 Q2 + Q6 Q2 + Q4 Q3 + Q4 Q3 + Q5 Q1 + Q5 Q1 + Q6 Q2 + Q6 Q2 + Q4 Q3 + Q4 Q3 + Q5 Q1 + Q5

Motor Drive

Current

+

AO

−

+

BO

−

+

CO

−

Full Speed (No PWM)

Reduced Speed (≈ 50% PWM)

FWD/REV = 1

Figure 36. Three Phase, Six Step, Full Wave Commutation Waveforms

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