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Protect IGBTs by Sensing Current Using Optical Isolation Amplifi ers

May 16, 2012 // Hong Lei Chen, Avago Technologies // 0 comments

Protect IGBTs by Sensing Current Using Optical Isolation Amplifi ers Download White Paper 151Ko

Insulated-gate bipolar transistors (IGBTs) require full protection to avoid damage and failures resulting from conditions such as short circuits, overloads and overvoltages. The protection is key to ensuring safe and stable power-converter operations in applications such as motor drives and solar and wind power generation systems. To detect over-current and overload conditions, isolation amplifiers featuring fast response or fast fault feedback can be used on the output phases and the DC bus.


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This month Ambiq Micro is giving away five of its 'Apollo EVB' evaluation boards, worth 9 each for EETimes Europe’s readers to assess the capabilities of their cutting-edge Apollo sub-threshold microcontroller.

The new suite of Apollo MCUs is based on the 32-bit ARM Cortex-M4 floating point microcontroller and redefines 'low power' with energy consumption that is typically five to ten times lower than that of MCUs of comparable performance (thanks to Ambiq’s patented Subthreshold Power Optimized Technology platform).


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