72651-701LF

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Introduction:The 72651-701LF is a component of the ADI range of analog-to-digital converters (ADCs) and offers an integrated pulse width modulation (PWM) output. This article discusses the application field and working principle of the 72651-701LF. Application Field:The 72651-701LF is specifically designed for applications such as industrial process monitoring, condition monitoring, and motor control system, which require accurate, high-speed, analog-to-digital conversions with PWM capabilities. It is also compatible with harsh environments, making it suitable for applications such as mining and hazardous material handling.Design:The 72651-701LF has an integrated delta-sigma type ADC converters that provide up to 8-bit resolution, with a conversion speed of 1.6Msps (million samples per second). It is equipped with independent analog inputs and digital outputs to enable the user to access the analog and digital signals generated by the ADCs for further processing. The integrated pulse width modulation (PWM) feature allows for the generation of an output signal with a fixed frequency and varying duty cycles. This feature can be used to control the speed and position of brushless DC motors, as well as for applications requiring efficient power supply regulation. Working Principle:The 72651-701LF operates using delta-sigma conversion techniques. In this process, the ADC samples the incoming analog signal at regular intervals and produces a digital output that is proportional to the input. This digital output is then converted into a PWM signal, with varying duty cycles, which is then used to control the speed and/or position of the motor. The PWM signal’s frequency is determined by the input clock signal, while the duty cycle is proportional to the digital output from the ADC, which is directly proportional to the analog input. By varying the duty cycle of the PWM signal, the applied voltage to the motor can be varied, which in turn results in a change in the motor’s speed. Conclusion: The 72651-701LF is an ideal choice for any analog-to-digital conversion with PWM motor control applications. Its delta-sigma conversion technique allows for fast and accurate analog-to-digital conversions, while its integrated PWM feature allows for precise motor control. This solution offers an integrated solution that can address a wide range of applications, from industrial to mining and hazardous material handling.

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