Views: 0 Author: Site Editor Publish Time: 2023-11-03 Origin: Site
A DC motor refers to a rotating electrical machine that can convert DC electrical energy into mechanical energy or mechanical energy into DC electrical energy.
New materials for NdFeB magnet motors are widely used, and brushless motor BLDC technology has been vigorously developed. Yint Electronics conducts in-depth research to improve the stability of products and save energy and reduce consumption for our planet. Provide our complete electromagnetic compatibility solution for brushless motor electronic control!
| Part | Yint Electronics' protective devices | Function and standard compliance |
| AC to DC module | Mainly prevents power supply fluctuations and induced lightning surges IEC61000-4-5/GB-T17626.5 | |
| Mainly protects MCU from reverse electromotive force interference and improves DC power supply ripple quality IEC61000-4-4/GB-T17626.4 | ||
| High quality rectifier tube |
Note: The selection of Mov and NTC needs to be selected according to the motor power and usage scenario.
* For M7, it is important to choose devices with excellent heat dissipation and excellent VF performance.
| Part | Yint Electronics' protective devices | Function and standard compliance |
| Driver part | 1) Drive VH and GND to provide 16V or 15V power supply to prevent surges caused by motor startup and effectively protect processing chips (especially COMS process integrated circuits) 2) Vge/Vgs side Miller effect overcharge voltage suppression, static electricity suppression | |
| Anti-backflow protection for VCC and VB bootstrap circuits | ||
| Prevent the interference of series excited magnetic field or parallel excited magnetic field, reverse cut-off IEC61000-4-4/GB-T17626.4 |
| Part | Yint Electronics' protective devices | Function and standard compliance |
| MOS FET/IGBT Active clamp section | When the IGBT or MOSFET has an upper or lower bridge or load short circuit, the drive circuit turns off the IGBT/MOSFET and causes a voltage spike to act as an active clamp. |
Note: If the DC bus voltage is not too high, it can be completed by a single TVS. If the voltage is too high, it can be completed by multiple low-voltage IVSs connected in series. However, care should be taken to suppress the series parasitic inductance to avoid overcharging when the active clamping voltage is too high.
