1results about How to "Solve the pressure drop" patented technology

The application discloses an encoder power supply switching circuit, which is characterized by comprising a first switching circuit, a second switching circuit and a power output end, wherein the power output end is used for connecting an encoder load, the first switching circuit is arranged between an encoder power supply and the power output end, the first switching circuit comprises a first diode, the positive electrode of the first diode is connected with the encoder power supply, and the negative electrode of the first diode is connected with the power output end; the second switching circuit is arranged between an encoder battery and the power output end, the second switching circuit comprises a first Pmos tube, the drain electrode of the first Pmos tube is connected with the encoder battery, the source electrode of the first Pmos tube is connected with the power output end, and the gate electrode of the first Pmos tube is connected with the encoder power supply. The application has the advantages that the automatic switching of the power supply of the encoder is realized, the problem of power supply voltage drop is solved, and the power supply switching circuit has a smaller voltage drop.