A detection circuitry for rescuing winch contactless circuit overflows signal

The utility model discloses a detection circuitry for rescuing winch contactless circuit overflows signal, including being used for the merge of collect motor electric current or looks line current to change adjustable digital level output's magnetic field signal acquisition circuit into, carry out magnetic field signal acquisition circuit's sampled signal the operational circuit that enlargies for the signal control circuit of transmission control signal, a comparison circuit for going on signal comparison, magnetic field signal acquisition circuit connects operational circuit and comparison circuit respectively, signal control circuit and operational circuit all connect comparison circuit, solving prior art detection electrical winch (especially rescuing electrical winch ) contactless circuit and overflowing the required of signal and a detection circuitry of design, the instantaneous heavy current that passes through of magnetic field signal acquisition circuit detection that the accessible was provided wi