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Driving control circuit, control method of driving control circuit and life electric appliance

A technology for driving control circuits and driving circuits, which is applied in the field of driving control circuits and household electrical appliances, and can solve problems such as unsatisfactory control requirements and undetermined operating status

Active Publication Date: 2021-12-31
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related technical solutions, in order to ensure the stable operation of the equipment installed with ultrasonic transducers, when the equipment is running, the ultrasonic transducers will start to power on and run, and their actual operation The state cannot be determined and cannot meet the control needs at this stage

Method used

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  • Driving control circuit, control method of driving control circuit and life electric appliance
  • Driving control circuit, control method of driving control circuit and life electric appliance
  • Driving control circuit, control method of driving control circuit and life electric appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In one embodiment of the present invention, as figure 1 , figure 2 with image 3 As shown, a drive control circuit 100 is provided for an ultrasonic transducer 122, including: a drive circuit 102, a first detection circuit 104, a second detection circuit 106 and a controller 108, wherein the drive circuit 102 is configured as Drive the ultrasonic transducer 122; the first detection circuit 104 is connected to the drive circuit 102; the second detection circuit 106 is connected to the power supply circuit of the drive control circuit 100, and the second detection circuit 106 is configured to obtain the zero-crossing signal of the power supply circuit The controller 108 is connected to the first detection circuit 104 and the second detection circuit 106, and the controller 108 is configured to: receive the zero-crossing signal of the power supply circuit, and control the first detection circuit 104 to detect the driving circuit 102 within the first duration The number ...

Embodiment 2

[0055] In the above example, if figure 2 As shown, the drive control circuit 100 further includes an inverter circuit 110, the inverter circuit 110 includes a first switching device Q1 and a second switching device Q2, the first end of the second switching device Q2 is connected to the second end of the first switching device Q1 connected; the drive circuit 102 includes a first transformer T1, wherein the primary coil of the first transformer T1 is connected in series in the loop where the resonant circuit 120 of the ultrasonic transducer 122 is located, and the first secondary coil of the first transformer T1 is connected in series. One end is connected to the control end of the first switching device Q1, the second end of the first secondary coil of the first transformer T1 is connected to the second end of the second switching device Q2; the second secondary coil of the first transformer T1 The first end of the coil is connected to the control end of the second switching d...

Embodiment 3

[0061] In any of the above embodiments, if figure 2 with image 3As shown, the drive control circuit 100 further includes: a switch circuit 112, and the switch circuit 112 includes: a third switch device Q3, the first terminal of the third switch device Q3 receives the first power supply signal, and the control terminal of the third switch device Q3 is connected to the control terminal The output end of the device 108 is connected; the third capacitor C3, the first end of the third capacitor C3 is connected to the second end of the third switching device Q3, and the second end of the third capacitor C3 is grounded; the fourth switching device Q4, The first terminal of the fourth switching device Q4 is connected to the first terminal of the third capacitor C3, the second terminal of the fourth switching device Q4 is connected to the second terminal of the third capacitor C3, and the third terminal of the fourth switching device Q4 is connected to the second terminal of the thi...

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Abstract

The invention provides a drive control circuit, a control method of the drive control circuit and a life electric appliance. The drive control circuit comprises a drive circuit which is configured to drive an ultrasonic transducer; a first detection circuit connected with the driving circuit; a second detection circuit connected with a power supply circuit of the driving control circuit, wherein the second detection circuit is configured to obtain a zero-crossing signal of the power supply circuit; and a controller which is connected with the first detection circuit and the second detection circuit, wherein the controller is configured to receive a zero-crossing signal of the power supply circuit and control the first detection circuit to detect the interruption times of an output signal of the driving circuit within a first duration. The operation state of the driving circuit is controlled according to the comparison result of the interruption times and the interruption threshold value, so that the possibility that the ultrasonic transducer operates under a non-load condition or an abnormal condition is reduced, and the operation reliability of the ultrasonic transducer is improved.

Description

technical field [0001] The present invention relates to the technical field of drive control, in particular to a drive control circuit, a control method for the drive control circuit, and household electrical appliances. Background technique [0002] In related technical solutions, in order to ensure the stable operation of the equipment installed with ultrasonic transducers, the ultrasonic transducers start to be powered on when the equipment is running, and its actual operating status cannot be determined, which cannot meet the current control requirements. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. [0004] Therefore, the first aspect of the present invention is to provide a driving control circuit. [0005] The second aspect of the present invention is to provide a control method for a drive control circuit. [0006] The third aspect of the present invention i...

Claims

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Application Information

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IPC IPC(8): G05B19/04
CPCG05B19/04Y02B70/10
Inventor 雷俊王云峰曾露添刘友文邓家华区达理江德勇安楠楠何新华郑量
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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