Voltage monitoring circuit with hysteresis characteristic

• Main Authors: WU TONGTONG, SEO MYUNG-KYU, JIANG DING, NAM JONG-KI
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2022
• Subjects: INFORMATION STORAGE; PHYSICS; STATIC STORES

The invention belongs to the technical field of voltage monitoring circuits, and particularly relates to a voltage monitoring circuit with a hysteresis characteristic. By arranging the seventh field effect transistor, a positive feedback branch exists in the circuit, according to the positive feedback branch, a signal at the drain electrode of the seventh field effect transistor is subjected to two-stage amplification through the second field effect transistor and the seventh field effect transistor and then returns to the drain electrode of the seventh field effect transistor, and the positive feedback belongs to parallel voltage positive feedback. And the seventh field-effect transistor is switched on in the descending process when the voltage at the negative input end of the hysteresis comparator exceeds the voltage at the positive input end, so that hysteresis voltage is provided. 本发明属于电压监测电路技术领域，特别涉及一种具有迟滞特性的电压监测电路。本申请通过设置第七场效应管，使电路中存在一条正反馈支路，这条正反馈支路是第七场效应管的漏极处的信号由第二场效应管、第七场效应管两级放大后回到第七场效应管的漏极处，属于并联电压正反馈