Introduction
This month we are shining the spotlight on Renco Electronics- specifically their current sensing capabilities. In July of 2020 Standex acquired Renco, and they have been an integral part of the team since then. Renco Electronics, Inc. was founded in 1955. They were founded in New York but are now based out of Rockledge, Florida. Renco designs and manufactures world-class engineered inductors, transformers and subassemblies for thousands of products focused on consumer, industrial, military and aerospace end markets.
Renco has a strong engineering team capable of designing a wide breadth of power magnetics. Supported by USA and international manufacturing, designs evolve from conceptual prototypes to mass production accelerating development time.
Where are Current Sensing Magnetics used?
Current sense magnetics are typically found in low to medium power applications where AC current measurement is required. Components can be designed and customized for an application’s current rating and linearity, required current ratios, and are designed around a required frequency response. Renco has several off the shelf options for both line and high frequency sensing, such as the RL-7747 series.
Typical applications of the RL-7747 include:
- Gear/switch boards
- Load/overload sensing
- Power demand monitor
- Power failure
- Feedback control
- Detecting load drop or shutdown
Conclusion
In short, Renco’s RL-7747 is an economical current sense solution for line frequency currents. The construction, specifically the materials and winding techniques, help explain why this is the case.
Below are a few resources you may find useful. Click the first link for a brief summary of Renco’s RL-7747 transformer, and click the second for the datasheet.
