Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply time sequence management circuit of motor controller

A motor controller and timing management technology, which is applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of power tube mistriggering and damage to the power tube, and achieve the effect of prolonging the service life

Pending Publication Date: 2021-12-03
GUIYANG AVIATION MOTOR
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a motor controller power supply sequence management circuit to ensure that the high-power motor controller is not damaged under the condition of arbitrary power-on and power-on sequence conditions of the control power and power The unsteady state causes the wrong triggering of the power tube, which causes the problem that the upper and lower tubes are directly connected to damage the power tube

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply time sequence management circuit of motor controller
  • Power supply time sequence management circuit of motor controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The internal power supply +5V of the control circuit 2 is obtained from the control power supply 28V through power conversion, the main control chip 1 power supply +3.3V is obtained from the internal power supply +5V of the control circuit 2 through power conversion, the control internal power supply +5V and the main control chip 1 The power supply +3.3V is obtained through the power supply timing management circuit to obtain the power supply +5V_UP for the primary side of the power drive circuit 3; the power supply for the main control chip 1 is +3.3V, the internal power supply for the control circuit 2 is +5V, and the power supply is +5V_UP for the primary side of the power drive; the specific implementation process is as follows :

[0021] Timing management circuit, when the product is powered on, the diode D1 acts as a clamp, only when +3.3V is built up to a voltage above 3V, that is, the power supply voltage of the main control chip 1 is above 2.8V, and the voltage ...

Embodiment 2

[0023] During the power-off process of the controller, monitor the power supply voltage of +3.3V for the main control chip 1 and +5V for the internal power supply of the control circuit 2 in real time:

[0024] When the "+3.3V" voltage is greater than 3V and the power supply voltage of the main control chip 1 is greater than 2.8V, it can work normally, the diode D1 clamps, and the voltage of the negative pole of the Zener tube Z1 is above 3.7V, breaking down the Zener tube Z1 makes the triode Q1 saturated and turned on. At this time, the gate-source voltage of the P-channel MOS transistor VGS<0V; Provide power to the primary side of the drive signal isolation optocoupler.

Embodiment 3

[0026] When the "+3.3V" voltage is less than 3V, the diode D1 clamps, and the voltage of the negative electrode of the Zener tube Z1 is less than 3.7V. Due to the voltage divider effect of the Zener tube Z1, the triode Q1 cuts off VBE 0V; the MOS transistor is cut off, so that during the power-off process of the "+3.3V" voltage, the +5_UP of the power supply of the primary side of the power drive circuit 3 is reliably cut off; because the +5_UP has no energy storage capacitor in the design , after the MOS tube is cut off, the primary power supply of the power drive circuit 3 has no capacitive effect, and it is reduced to 0V in a stepwise manner. Both the front and rear stages are designed with reliable pull-down circuits, and the inverter bridge is placed in the closed state; during the power-off process, the +5_UP power supply of the primary power supply of the power drive circuit 3 is guaranteed to be powered off before the +3.3V power supply of the main control chip 1, ensuri...

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

No PUM Login to View More

Abstract

The invention discloses a power supply time sequence management circuit of a motor controller. The power supply time sequence management circuit comprises a control circuit, a power driving circuit and a main control chip which is installed on the control circuit. One pin end of the main control chip is sequentially connected with a diode D1, a voltage-regulator tube Z1 and a triode Q1, and a resistor R1 is connected in parallel between the diode D1 and the voltage-regulator tube Z1; one pin end of the control circuit is connected with the resistor R1, the other pin end of the control circuit is connected with a resistor R2 and an MOS tube in parallel, and one pin end of the MOS tube is electrically connected with the power driving circuit. With the power supply time sequence management circuit of the motor controller adopted, it can be ensured that a product power tube is not damaged under any power-on and power-off time sequence conditions of control electricity and power electricity of the high-power motor controller, the service life of the product is prolonged, so that the popularization and use of the time sequence management circuit can be facilitated.

Description

technical field [0001] The invention relates to the technical field of motor controllers, in particular to the timing management of a power supply of a high-power motor controller realized by a timing management circuit of a power supply, in particular to a timing management circuit of a power supply of a motor controller. Background technique [0002] The existing multi-power DC power supply such as: control power supply 28V, power drive power supply 270V, high-power motor controller power supply sequence management circuit; in the process of power supply 28V control power and 270V power power on and off, it is easy to appear due to power instability The phenomenon that the power tube is wrongly triggered causes the upper and lower tubes to directly damage the power tube; in order to solve this problem, a timing management circuit is designed in the control circuit. Contents of the invention [0003] The purpose of the present invention is to provide a motor controller po...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/088H02M1/38
CPCH02M1/088H02M1/38
Inventor 唐宝刘兴林浦绍星
Owner GUIYANG AVIATION MOTOR