Our Indian Electric automotive (EV) industry is rapidly evolving, and as a manufacturer, you would be constantly seeking innovative solutions to enhance performance, efficiency, and safety. And an indispensable part of this plan are current sensors.
LEM current sensors, exclusively distributed in India by Globetek India, have established themselves as the gold standard in the automotive sector.
Over the past few years, as the Indian automotive sector has seen an upswing in activity, we’ve seen demand for this product skyrocket.
In this article, we’ll explore the benefits and superiority of Switzerland-based LEM current sensors, highlighting why it’s the preferred choice for Indian manufacturers.
Our Automotive Applications and Product Lines
Our current and voltage sensors are used in a wide range of applications:
● Battery management and start-stop applications for conventional car
● Electrical motor controls
● Battery pack management and charging systems for hybrid and electric vehicles
LEM current sensors offer unparalleled accuracy (up to 0.5% error margin) and reliability, ensuring precise measurements even in harsh environments (up to 150°C). Their compact design (as small as 10mm x 10mm x 5mm) enables easy integration into tight spaces, making them ideal for modern automotive applications.
Additionally, LEM sensors can withstand extreme temperatures, ensuring consistent performance in demanding automotive environments. With low power consumption (as low as 0.1mA), they reduce energy waste, aligning with the industry’s focus on sustainability.
Here are a few product lines that offer the above benefits:
LEM HMSR: High-Accuracy Current Measurement
The LEM HMSR is a high-accuracy, compact sensor for DC and AC current measurement, ideal for electric vehicle charging systems and hybrid powertrains. Its high accuracy ensures precise control and monitoring of electrical currents.
LEM DHAB: High-Power EV current measurement
The DHAB family is designed for the electronic measurement of DC, AC or pulsed currents in high power and low voltage automotive applications with galvanic separation between the primary circuit (high power) and the secondary circuit (electronic circuit). It comes with a dual channel sensor for wider measurement range and redundancy.
LEM HAH1BVW: Mid-Power EV current measurement
The HAH1 family is for the electronic measurement of DC, AC or pulsed currents in high power and low voltage automotive applications with galvanic separation between the primary circuit (high power) and the secondary circuit (electronic circuit). The HAH1BVW is a Compact current sensor for busbar mounting +/-1200A. Dual range capabilities (high/low range) suitable for high power battery management system.
LEM HAH1DR: Motor Control current measurement
The HAH1 family is for the electronic measurement of DC, AC or pulsed currents in high power and low voltage automotive applications with galvanic separation between the primary circuit (high power) and the secondary circuit (electronic circuit). The HAH1DR is a current sensor for automotive high voltage traction inverters in xEVs.
Benefits of LEM Current Sensor
Compact Design for higher power density – Surface mounted IC Sensors
LEM current sensors are designed to be compact, allowing for seamless integration into automotive systems.
Power density is a critical factor for increasing performance, as space constraints are prevalent in virtually every automotive application. Ever increasing power densities are driving the emergence of new current sensing technologies. Surface-mounted integrated circuit (IC) sensors measure high currents in a very compact footprint and therefore have become the technology of choice.
High-Temperature Resistance for Demanding Environments
The automotive industry is known for its demanding environments, with high temperatures and vibrations posing significant challenges. LEM current sensors are designed to withstand these conditions, ensuring consistent performance even in extreme temperatures.
Low Power Consumption for Sustainable Design
LEM current sensors are designed with sustainability in mind, featuring low power consumption that reduces energy waste. This is particularly important in automotive applications, where energy efficiency is crucial for reducing emissions and minimizing environmental impact.
Smarter Sensors
Smart grid and autonomous driving are major disruptions caused by the digital revolution leading to smarter, greener and more efficient ecosystems. LEM is at the forefront of these megatrends, developing smart sensors equipped with data processing capabilities that ensure higher safety levels thanks to self-diagnostic features. The LEM sensors feature embedded software that provides real time information to the on-board system, offering customers high-value and versatile solutions.
Choosing the right current sensor
This requires a fine balance of technical and economic factors – of the current sensor and its place in the larger project itself. Some important parameters to consider include:
● Electrical requirements: power supply, peak measurement, response time, and more
● Mechanical requirements: aperture size, overall dimensions, mounting options, materials used, and more
● Thermal conditions: current profile over time, maximum RMS measurement, cooling requirements, and more
● Environmental conditions: vibrations, temperature fluctuations, proximity to magnetic fields, and more
Exclusive Distribution Partnership with Globetek India
Globetek India, with its long-standing partnership with LEM, ensures seamless access to these cutting-edge current sensors.
Our partnership enables you to leverage LEM’s expertise and Globetek’s local support – ie, procuring, solutioning and offering a seamless end-to-end experience that works for your solution.
If you have any queries or requirements, please feel free to reach out via call or email. We look forward to working with you!
