AN1905 ST Microelectronics, Inc., AN1905 Datasheet - Page 65
AN1905
Manufacturer Part Number
AN1905
Description
St7mc Three-phase BLDC Motor Control Software Library
Manufacturer
ST Microelectronics, Inc.
Datasheet
1.AN1905.pdf
(77 pages)
Figure 46. Comparison: reactive currents, highly inductive motor windings (sensor 120)
Case 1 : PWM applied on high side during step 2, low side during step 5
Case 2: PWM applied on low side during step 2, high side during step 5
ST7MC THREE-PHASE BLDC MOTOR CONTROL SOFTWARE LIBRARY
(All other steps: high side)
(All other steps: high side)
The reactive cur-
rents become negli-
gible when PWM is
applied on the ap-
propriate switch
65/77
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