| 摘要 |
A very fast peak detector having feedback is presented. A first device charges a storage capacitor to a voltage proportional to the peak voltage of an incoming signal. A second device coupled to the first device in a feedback configuration further charges the storage capacitor with a charging current in addition to the charging current provided by the first device for more rapidly charging the storage capacitor to said voltage proportional to the peak voltage of a low duty cycle short duration incoming pulse. This detector is particularly applicable to a video system having peak luminance detection requirements.
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