Motor device, electrical device and circuit

Abstract

The embodiment of the invention discloses a motor device, an electrical device and a circuit, wherein the motor device comprises a motor and a driving circuit, wherein the driving circuit comprises a first switch circuit and a second switch circuit, and each switch circuit comprises a first switch and a second switch, wherein the current output end of a first switch of each switch circuit and the current output end of a second switch are electrically connected; the current input end of the first switch is connected with a higher voltage; the current output end of the second switch is connected with a lower voltage; two second switches of the first switch circuit and the second switch circuit are configured to be alternatively conducted; the motor is electrically connected between two current input ends of two second switches; and the state of the first switch of at least one circuit in the first switch circuit and the second switch circuit changes as the state of the second switch of the other circuit. The embodiment of the invention has the advantages of simple circuit structure, low cost, good reliability, low energy consumption and the like.

Description

technical field [0001] The invention relates to circuit technology, in particular to a drive circuit applicable to a motor. Background technique [0002] figure 1 It shows a motor device in the prior art, including a first half-bridge circuit 110, a second half-bridge circuit 120, and a motor M. Switches K1-K4 in the first and second half-bridge circuits are controlled by control signals S1-S4 On or off under control. The working principle of the circuit is as follows: when the switches K1 and K4 are turned on and K2 and K3 are turned off, the current flows from node n1 to node n2; when the switches K1 and K4 are turned off and K2 and K3 are turned on, the current flows from node n2 to node n1 ; In this way, the current flows through the motor M in an AC manner, thereby driving its work. In the traditional technology, it is necessary to separately configure driving circuits for the switches K1-K4, and the upper-side switches K1 and K3 are usually isolated driving circuits...

AI Technical Summary

Problems solved by technology

In traditional technology, separate drive circuits need to be configured for the switches K1~K4, among which the upper-side switches K1 and K3 are usually isolated drive circuits (such as optically isolated drive circuits), resulting in complex circuit structures and high costs

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