STEVAL-IHM012V1 STMicroelectronics, STEVAL-IHM012V1 Datasheet - Page 14

• Manufacturer Part Number: STEVAL-IHM012V1
• Description: EVAL BRD POWER MOSFET/8PIN MCU
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-IHM012V1

• Design Resources: STEVAL-IHM012V1 Gerber Files STEVAL-IHM012V1 Schematic STEVAL-IHM012V1 Bill of Materials
• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST7FLITEUS5
• Primary Attributes: Brush DC Motors
• Secondary Attributes: DC Chopper
• Product: Power Management Modules
• Kit Application Type: Power Management - Motor Control
• Application Sub Type: BLDC Motor
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ST7FLiteUS5
• Other names: 497-5861

Field tests
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Figure 8.
Figure 10. Duty cycle 100% in no load
Field tests
We have plotted the PWM control signal (waveform in blue) and the current in the motor
(waveform in black) when it runs in no load condition and in the blocked rotor condition. We
have some examples which show how the high current protection routine operates.
For these tests we used one 7.2 DC brush motor and set the software parameters to:
We have taken two cases one at duty cycle 60% and another at duty cycle 100%, see
Figure
the controller limits and forces the motor current to 7 A rms.
Duty cycle 60% in no load condition Figure 9.
condition
–
–
8,
Figure
#define Isafe 70 (7 A)
#define Imin 30 (3 A)
9,
Figure 10
and
Figure
Figure 11. Duty cycle 100% in blocked rotor
11. When the high current protection routine works,
Duty cycle 60% in blocked rotor
UM0291