Overvoltage detection circuit

摘要: The present invention discloses an overvoltage detection circuit. circuit comprises reference voltage source, undervoltage a power source acquisition module, logic and comparison module latch module; the two-input OR gate OR1 OR2; integrates circuit; point both have two threshold voltages, so that it can be ensured operate stably in vicinities of point. In addition, is different from existing mainstream technology according to which hysteresis realized through feedback, therefore, response speed greatly improved.