{"id":1636,"date":"2020-06-23T22:50:31","date_gmt":"2020-06-23T22:50:31","guid":{"rendered":"https:\/\/riedon.com\/blog\/?p=1636"},"modified":"2020-10-15T07:53:07","modified_gmt":"2020-10-15T07:53:07","slug":"riedon-introduces-industrys-first-reinforced-isolated-high-power-shunt-modules-take-hall-sensors","status":"publish","type":"post","link":"https:\/\/riedon.com\/blog\/riedon-introduces-industrys-first-reinforced-isolated-high-power-shunt-modules-take-hall-sensors\/","title":{"rendered":"Riedon Introduces Industry\u2019s First Reinforced Isolated High-Power Shunt Modules to Take on Hall Sensors"},"content":{"rendered":"

Alhambra, California, USA, June 10th 2020 <\/i>\u2013 Riedon<\/span>, a specialist manufacturer of cutting-edge power and precision resistors, is set to redefine the current measurement landscape with the introduction of its SSA Smart Shunt series.<\/p>\n

\"\"These next-generation current sensing modules combine the attributes of conventional passive shunt resistors with those normally associated with considerably more expensive and bulky closed-loop Hall Effect current sensors. Each featuring a built-in precision amplifier, they offer reinforced electrical isolation (up to 1500VDC), alongside industry-leading levels of stability and accuracy.<\/p>\n

SSA Smart Shunt units exhibit \u00b10.1% sensing accuracy and \u00b10.1% linearity over their entire current range, with far less susceptibility to temperature drift. The need for routine calibration can therefore be negated. They also have a rapid response time of less than 1.5\u03bcs. With an amplified analog output and integrated protection, these current sensors can be placed on either the high or low side of a circuit, thereby enabling easy integration. Their temperature range spans between -40\u00b0C and 125\u00b0C. Riedon plans to offer a digital output as well, through I2<\/span>C, RS232, Modbus and CAN interfaces (thus suiting both industrial and automotive installations).<\/p>\n

The robustness of SSA Smart Shunt modules makes them suitable for use in high-power (100A to 1000A) implementations, where harsh conditions may need to be dealt with – such as elevated temperature levels, heavy vibrations and electro-magnetic interference (EMI). Key examples include electric vehicle (EV) and hybrid-electric vehicle (HEV) traction inverters, AC\/DC converters, uninterruptible power supplies, renewable energy generation sites and smart grid infrastructure. 2<\/p>\n

\"\"\u201cSSA Smart Shunt signifies a major step forward in shunt-based current sensing,\u201d explains Phil Ebbert, VP Engineering at Riedon Inc. \u201cUntil now, despite clear drawbacks, such as the impact of electro-magnetic fields and temperature fluctuations on their accuracy, Hall Effect sensors have proved preferable in more challenging current measuring applications, as they are non-intrusive, possess intrinsic electrical isolation and support higher voltages. Conversely, the non-isolated nature of standard shunt resistors has held back their widespread deployment, even though they offer more accurate and operationally stable parameters.\u201d<\/p>\n

\u201cBy integrating isolation amplifiers, SSA Smart Shunt modules deliver superior accuracy and stability,\u201d Ebbert concludes. \u201cThis opens up new current sensing opportunities, providing engineers with a compact and cost-effective alternative to specifying Hall devices.\u201d<\/p>\n