Seven functions that a battery-powered motor bridge driver should have

A battery-driven electric bridge driver should have seven functions. 1. Because most motor drives that use a bridge drive require low bias current, the controller (general digital signal processor (DSP) or microcontroller) also needs low bias Current, and integrated linear regulators (they), so that the operating voltage of the control device must support the bridge, the bridge drive is 12VDD, and the controller 3.3VCC. 2. The mechanically switchable LDO input ensures that the LDO has no vibration transmission. 3. Ensure ultra-low static current and reduce battery power consumption. In the case of ambition, the sleep mode can be selected. When there is a bridge voltage and it is not working, be sure to turn off the driver. 4. Ensure that Daqiao Road runs uninterrupted when the battery voltage is as low as 5V. This can be achieved by ~4.2v undervoltage lockout. The typical value of traditional bridge drive UVLO is 7.5V. 5. It is necessary to have sufficient tolerance for the high instantaneous negative bias of the phase node. The gradual improvement of the switching current of bridge field effect transistors has become the trend of motor drive (u003e200A). With the increase of the switching current and the constraints of the non-ideal PCB wiring structure, it is difficult to reduce the negative transient high voltage impact of the HS pin formed by the PCB parasitic inductance. 6. When using in large quantities, the packaging scale must be reduced as much as possible to save fabric space. The smaller package also makes it easier to locate the driver close to the field effect transistor, alleviating the problem of poor PCB layout. 7. The rated voltage of the drive axle should reach 50V to ensure reliable operation of the battery under 36V conditions. The bridge driver is particularly suitable for a new generation of brushless DC motor driver, because it can significantly extend the power supply life and overall product life of lithium battery-powered equipment. Currently on the market, products that improve battery life, equipment life and high reliability have become the first choice of customers. The new bridge driver supports brushless DC motors driven by lithium batteries to meet and exceed market demand. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Explanation of the correct charging method for lithium battery electric vehicles