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UM0428 Fiches technique(PDF) 22 Page - STMicroelectronics |
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UM0428 Fiches technique(HTML) 22 Page - STMicroelectronics |
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22 / 27 page ![]() Motor control demonstration UM0428 22/27 7.5.2 Changing the current hardware protection level The hardware protection level has been set by design to 4 amps but it is possible to change this value soldering one (or three) resistor(s) of specific value as described in Figure 13. Figure 13. Changing the divider factor to increase the current protection level If the system is configured for single-shunt, only R114 must be soldered. If the system is configured for three-shunt, R114, R101, R123 must be soldered. The value of the resistor(s) express in k Ω can be calculated from the following formula: Equation 1 For IMAX = 10 A one (or three) resistor of 1 kΩ must be soldered. Note: Read how to change the software current limitation in the control board user manual R I MAX 5 ------------ 1 – 1 – = |
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