Hysteresis comparator of safety micro-control unit

• Main Authors: WANG TENGLONG, QIU KANGHAN
• Format: Patent
• Language: Chinese; English
• Published: 26.12.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; PULSE TECHNIQUE

The utility model provides a hysteresis comparator of a safety micro-control unit, which comprises an input stage circuit, an output stage circuit and a hysteresis circuit, the hysteresis circuit is arranged in the comparator, Vb2 can be adjusted so as to adjust the internal hysteresis of the comparator, the Vb2 is increased so as to increase the internal hysteresis, the Vb2 is reduced so as to reduce the internal hysteresis, and the larger the internal hysteresis is, the larger the Vb2 is, the larger the Vb2 is, the larger the Vb2 is. The stronger the anti-noise capability of the comparator is, the internal hysteresis can be added to the comparator under the condition that the feedback resistor is not used, and the anti-noise capability of the comparator is enhanced. 本实用新型提出了一种安全微控制单元的迟滞比较器，包括输入级电路、输出级电路和迟滞电路，通过在比较器内部设置迟滞电路，可调节Vb2进而调节比较器的内部迟滞，通过增大Vb2，使内部迟滞增大，减小Vb2，使内部迟滞减小，当内部迟滞越大，比较器的抗噪能力越强，该电路可以在不使用反馈电阻的情况下给比较器添加内部迟滞，增强了比较器的抗噪能力。