BP6308A is a high-performance and low-cost three-phase brushless DC motor sine wave control chip, which integrates Hall position decoder, MOSFET driver, oscillator and other modules. The CS5755MT is a highly integrated, highly reliable three-phase brushless DC motor drive circuit for use in lower power motor drives such as fan motors.
There are more types of driver chips on the market at present, if it is the driver chip and MCU integration of the driver there are several chip manufacturers have similar products, you can find ON Beauty (8824) Two companies, Allgro, have driver chips that meet the requirements of your application.
The control part of this paper mainly introduces a new type of brushless DC motor speed control system based on STM32F103 chip. Here, the motor speed control is mainly carried out by PWM technology, and the operation is stable, safe and reliable, low cost, and has far-reaching significance.
General purpose chips are generally used for low-end products of LED displays, such as indoor single and two-color screens. The most commonly used general-purpose chip is the 74HC595, which has an 8-bit latch, serial-and-shift register, and three-state output. everyWhat is the main difference between the driver chip? '> Where is the main difference between the driver chip of DC brushless motor and DC brushless motor?
1, this should be combined with the specific needs to make a difference, if only to do some low-voltage and small current square wave drive, some chips are both applications can meet, but if you want to do some complex brushless applications, especially the FOC drive mode, the need for computing resources are more, the general MCU can not meet.
2, the difference between brushless brush is very different. The brush is much simpler, and it can be turned by giving a DC voltage. Brushless if neededPower electronic equipment to turn on and off the voltage, and need to judge the rhythm of the switch according to the position of the rotor, the control requirements are more complex.
3, the rotor structure is different: the rotor of the brushed DC motor is usually composed of a series of iron cores wrapped with copper wire, and the electromagnetic conversion between the rotor and the stator is realized through the cooperation of the brush and the motor controller.
4, different structure composition of different DC brushless motors by the motor body and the driver, the stator winding of the motor is made of three-phase symmetrical star connection, the driver is composed of power electronics and integrated circuits. Dc is brushedThe components of the basic construction of the machine include a stator, a rotor, a brush and a commutator.
1, OCV3280B is a sensorless brushless DC motor drive control chip, it integrates motor controller and driver, can achieve brushless motor control and drive, is the ideal electric vehicle motor drive control chip. OCV3280B adopts PWM four-quadrant drive mode, which can realize the positive and negative control of the motor and speed control.
2, if it is the driver chip and MCU integration of the driver there are several chip manufacturers have similar products, you can find ON (8824) and Allgro these two, there are drivers that meet your application requirements. If some complex control functions are needed, the special chip may not be able to meet the requirements, and the single chip microcomputer is needed for product design.
3, Shanghai Jingfeng Mingyuan Semiconductor Co., Ltd. has a brushless motor control chip without external.
4, TDA5142T is a position sensorless brushless DC motor special control core produced by PhilipsThe chip contains a starting circuit, a full-wave commutating circuit and a protection circuit, which can conveniently realize the starting and control of brushless DC motor without position sensor.
5, therefore, the position sensorless brushless DC motor has become an ideal choice, and has broad development prospects, but its control circuit is quite complex.
6, the DC brushless motor can be adapted to a variety of applications from air conditioning fan motors to PC cooling fans. 2, reduce the number of external components, reduce the cost because of the analog voltage comparator, CR oscillation circuit, voltage detection circuit, monitoring timer circuit, no need to add externalOscillator, reset IC, help to reduce system costs.
FT8215, GC4931F/S, XM2618 chip, etc.
CS2018 integrates Hall voltage generator, differential amplifier, Schmidt flip-flop and open-collector output stage, etc., which can directly drive low-power motor windings, and the pin is only 4 pins, and the optical drive is useful to BA6849, and BA595Wait 4.
The current more suitable chip I found IR2110/IR2103, these two are similar, and MC3303MC3303LMD18200.
If it is the driver chip and MCU integration of the driver there are several chip manufacturers have similar products, you can find ON (8824) and Allgro these two, there are drivers that meet your application requirements. If some complex control functions are needed, the special chip may not be able to meet the requirements, and the single chip microcomputer is needed for product design.