Constant-current energy-saving mute control device for whole process of electromagnetic brake

The utility model provides a constant-current energy-saving mute control device for the whole process of an electromagnetic brake. The constant-current energy-saving mute control device for the whole process of the electromagnetic brake comprises a rectifying loop, a diode D5, an electrolytic capacitor C, an IGBT (Insulated Gate Bipolar Transistor) tube KG1, an IGBT (Insulated Gate Bipolar Transistor) tube KG2, a discharge resistor R, a sampling resistor RC, a CPU (Central Processing Unit) IC1, a high-frequency power conversion circuit and an integrated driving chip IC3, wherein the rectifying loop is connected with the electrolytic capacitor C in parallel for filtering; the plus end of the rectifying loop is connected with the drain electrode of the IGBT tube KG1; the source electrode of the KG1 is connected with one end of a coil; the other end of the coil is connected with the drain electrode of the IGBT tube KG2; after the discharge resistor R is connected with the diode D5 in series, one end of the disch