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Class-AB beta helper to reduce effects of mirror perturbation
Class-AB beta helper to reduce effects of mirror perturbation
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机译:AB类Beta助手可减少镜面干扰的影响
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摘要
The present invention achieves technical advantages as a write head mirror circuit (30) having a Class-AB beta helper (32) providing immunity to severe perturbations of mirror current at the mirror circuit output. The typical single transistor beta helper is replaced with a Class-AB beta helper, advantageously preventing the beta helper from turning off, thereby providing output mirror current accuracy.
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