DS232AS-NTR

DS232AS-NTR is a type of interface we might not hear of often, and yet it’s far from uncommon. This article will discuss the application field and working principle of the interface.

Application Field

The DS232AS-NTR is suitable for both stationary and mobile applications. It is a non-isolated drive designed mainly for driving three-phase Permanent Magnet Synchronous Motors (PMSM). Its main application is in electric vehicles like electric bikes and scooters, and it can also be used in solar water pumps. Other than PMSM, the DS232AS-NTR can also drive permanent magnet linear motors, hybrid step motors, brushless DC motors, and synchronous reluctance motors.

The DS232AS-NTR has a power supply voltage range of 200V to 400V, and current up to 40A (20A per phase). It also feature a variety of protections such as overvoltage, overcurrent and undervoltage. It has a fanless design with low noise, which makes it suitable for noise sensitive applications such as medical or residential systems.

Working Principle

The DS232AS-NTR utilizes an S-shape voltage in its working principle, which is both economical and energy efficient. The basic idea behind this working principle is to increase the speed of the motor by increasing the voltage of the drive. The actual voltage applied to the motor is then obtained by modulating the S-shape voltage.

In order to make the S-shape voltage, the DS232AS-NTR has two inputs: a voltage reference, and a current reference. The current reference is used to determine the peak current that the motor can safely handle. The voltage reference is then used to determine how quickly the motor acceleration should occur, and when it should stop.

The S-shape voltage is then modulated using Pulse Width Modulation (PWM). This is done by comparing the reference values to an internal voltage, and a modulation signal is generated when they differ. The PWM signal is then used to control the DC/AC inverter, which switches the direction of the current flowing through the motor according to the PWM signal. This in turn causes the motor to accelerate and decelerate, depending on the modulation signal.

Conclusion

In conclusion, the DS232AS-NTR is a non-isolated drive used to control the speed of PMSM and other types of motors. It uses an S-shape voltage and PWM to modulate the drive and control the current flowing through the motor. This makes it both economical and energy efficient, and it is also well-suited for applications in both stationary and mobile electric vehicles.