Components

200A Current Sense Transducer Delivers High-Performance for 40% Lower Cost

Danisense announced the DC200IF, a highly accurate, highly-stable 200A current transducer targeting system integration OEM applications, that is around 40% lower cost than competing models. This enables users to access Danisense’s unique, double-core, balanced flux gate measurement technology, at a very affordable price/performance ratio.

Announced last week at PCIM Europe 2019 in Nuremberg, Germany, the DC200IF boasts excellent linearity (6 ppm) with a maximum offset of 5ppm, equivalent to 1.5mA.

The units provide dc and ac current metering with +/- 0.1 absolute accuracy up to 5kHz. Devices feature low noise and high immunity to EMC. DC200IF current transducers are compact and are supplied with four industry-standard 6.3 x 0.8mm Faston connections.

“Danisense is pursuing a strategy of giving access to high accuracy current measurement to OEM power converter makers by offering our high performance 200A current transducer at a very affordable price: high accuracy has never been so accessible!” commented Loic Moreau, Sales & Marketing Director, Danisense A/S.

Flux-Gate Technology

The Danisense current sensor technology is based on a closed loop system, powered by a flux gate as the magnetic field detector and illustrated below. The magnetic field in the toroid generated by the primary current (Ip) is counteracted by the compensating secondary current (Is) generated by the integrator.

The flux gate detects magnetic fields in the toroid from dc to less than 100Hz at sub ppm levels and tells the integrator to compensate them out. At higher frequencies, the feedback winding (Nfb) detects magnetics fields in the toroid at ppm levels and tells the integrator to compensate them out as well. The secondary current (Is) is therefore proportional to the primary current (Ip) with the ratio Np:Ns.

DC200IF

The new, low cost DC200IF current transducers boost the performances of OEM power converters for medical, precise power supply, battery charger and accurate motor drives applications. Key applications include MRI equipment, power supplies for magnetic fields in particle accelerator and hadron therapy equipment, variable frequency drives, battery charger metering and monitoring.

Summary of Key Points:
  • Targets OEM integration applications
  • Enables high accuracy and high stability
  • Incorporates unique, high-performance measurement technology
  • Delivers best price/performance point for excellent affordability
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