LEM HMSR DA Integrated Current Sensors

 
 
HMSR DA is LEM's latest addition to its range of Integrated Current Sensors. It offers significant benefits in noisy applications. TheLEM current sensors includes an open-loop analog transducer based on the Hall effect. It has a large bandwidth and high resolution on the ENOB of 11 to 13 bits. LEM plans to launch the new HMSR DA at PCIM Europe 2022 power electronics exhibition in Nuremberg, Germany.
 
The HMSR family provides a reliable solution for measuring both DC and AC currents. It is well suited for applications in switch power applications. It has excellent isolation characteristics. Its digital version also offers several benefits, including reinforced isolation and a high level of immunity to stray fields. It has a high speed of response and a large bandwidth. Its digital model also offers a very small physical size and offers a high degree of accuracy and reliability.
 
The HMSR family has been used for years in various applications. Its analog versions have also been used in the past. However, LEM has now launched three new compact open-loop current sensor families.
 
The HOLY (HOYx) sensors are small and cost-effective. They have a simple, low-cost open-loop architecture that offers accurate, reliable measurement. They also have overcurrent detection. They are suitable for many applications, including battery-supplied applications and AC variable speed drives. They are available in a variety of current ranges, from 100 to 800 Amps. They are also able to replace more complex sensors. These sensors are busbar mounted, have a wide measuring range, and can be used in applications that require smaller sizes and low costs. They have new magnetic circuits that are optimized for weight and size.
 
The HOYS (Holy) sensors are compact and easy to install. They have a wide measuring range and have a fifth output pin for overcurrent detection. They have a single CMOS ASIC that performs all the signal processing. They have a low insertion loss and a high MTTF of 294,170,980 hours. They also have full galvanic isolation between the primary and secondary circuits. They have a maximum altitude of 2,000 meters. They also have a 1.2/50 us 'impulse withstand' insulation test that allows 8 kV.
 
The LA 55-P from LEM is a current transducer with optimized response time and very good linearity. It is used in Uninterruptible Power Supplies, servo motor drives, and AC variable speed drives. It has an instantaneous output and very good accuracy. It also has a wide frequency bandwidth, and a low temperature drift. It is suitable for applications in CNC machine tools, automated guided vehicles, and other robotic applications. Check out the SEM Sensor in this link.
 
LEM is also planning to launch a new generation of digital integrated circuit sensors. These sensors will offer a high speed of response and will have a clock operating up to 20 MHz. They will also offer 14 to 16-bit resolution. They will be available in a variety of models, including the closed-loop Hall Effect, open-loop Hall Effect, and single-ended CMOS. Get a general overview of the topic here: https://en.wikipedia.org/wiki/Current_sensing.
 
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