A permanent magnet brushless DC motor commutation control circuit
A permanent magnet brushless DC and control circuit technology, applied in motor control, control system, electronic commutator, etc., can solve the problems of low reliability and high cost of control circuits, and achieve high reliability, low cost, and simple implementation. Effect
Active Publication Date: 2020-07-10
BEIJING MECHANICAL EQUIP INST
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the above analysis, the present invention aims to provide a permanent magnet brushless DC motor commutation control circuit to solve the problems of high cost and low reliability of the existing control circuit
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0065] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.
[0066] A specific embodiment of the present invention discloses a permanent magnet brushless DC motor commutation control circuit, such as figure 1 As shown, it includes: commutation logic circuit (1), signal filter circuit (2), upper bridge arm control circuit (3), lower bridge arm control circuit (4), power main circuit (5), energy feedback circuit (7 );
[0067] The position signal of the permanent magnet brushless DC motor is input to the input terminal of the commutation logic circuit (1), and the output signals H1, H3, and H5 of the phase commutation logic circuit (1) are connected afte...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a commutation control circuit of a permanent magnet brushless DC motor, belonging to the technical field of motor commutation control, which solves the problems of high designcost and low reliability of the existing circuit. Comprises a commutation logic circuit, a signal filter circuit, an upper bridge arm control circuit, a lower bridge arm control circuit, a power maincircuit and an energy feedback circuit; A motor position signal is input to an input en of a commutation logic circuit, output signals H1, H3, H5 of the commutation logic circuit passes through the signal filtering circuit and then are connected to an upper bridge arm control circuit after that signal filter circuit, output signals H2, H4 and H6 of the commutation logic circuit are connected into a lower bridge arm control circuit after passing through a signal filtering circuit, The output signals of the upper bridge arm control circuit and the lower bridge arm control circuit are connectedwith the power main circuit. The output signals UA, UB and UC of the power inverter power main circuit are connected with the input terminal of the DC motor. The main power supply VCC interacts withthe power main circuit through the energy feedback circuit. The low cost, small volume and high reliability of the motor commutation control circuit are achieved.
Description
technical field [0001] The invention relates to the technical field of phase commutation control of a brushless DC motor, in particular to a phase commutation control circuit of a permanent magnet brushless DC motor. Background technique [0002] Due to the advantages of simple structure, small size, high efficiency and power density, brushless DC motors are widely used in various fields such as industry, national defense, aviation, and aerospace. [0003] With the rapid development of control theory, electronic components, materials and other industries, permanent magnet brushless DC motors have been widely developed, and there is an urgent need for low-cost, small-volume and highly reliable brushless DC motor control circuits. [0004] At present, the commutation control circuit of brushless DC motors mainly consists of two methods. The first method is to use the method of joint realization of position sensor, bridge drive circuit and processor chip. The processor chip col...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/16
CPCH02P6/16H02P2207/05
Inventor 崔臣君李方俊李俊峰李浩周通蔡霖王生捷
Owner BEIJING MECHANICAL EQUIP INST