CN219059437U - Power supply circuit of operation panel of clothes treatment combined equipment - Google Patents
Power supply circuit of operation panel of clothes treatment combined equipment Download PDFInfo
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- CN219059437U CN219059437U CN202222657207.9U CN202222657207U CN219059437U CN 219059437 U CN219059437 U CN 219059437U CN 202222657207 U CN202222657207 U CN 202222657207U CN 219059437 U CN219059437 U CN 219059437U
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- 238000011282 treatment Methods 0.000 title claims abstract description 44
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000011284 combination treatment Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The utility model discloses a power supply circuit of an operation panel of a clothes treatment combined device, which comprises a first reverse connection preventing circuit, a second reverse connection preventing circuit, a first switch circuit and a second switch circuit; the input end of the first reverse connection preventing circuit is electrically connected with the first power module, and the output end of the first reverse connection preventing circuit is electrically connected with the operation panel; the control end of the second switch circuit is electrically connected with the first power supply module, the input end of the second switch circuit is electrically connected with the second power supply module, and the output end of the second switch circuit is electrically connected with the control end of the first switch circuit; the input end of the first switch circuit is electrically connected with the second power supply module, and the output end of the first switch circuit is electrically connected with the input end of the second reverse connection preventing circuit; the output end of the second reverse connection preventing circuit is electrically connected with the operation panel. By adopting the technical scheme, the first power supply module and the second power supply module can supply power for the operation panel, the power supply of the operation panel can be connected in a seamless manner, the circuit is simple and reliable, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of power supply circuits, in particular to a power supply circuit of an operation panel of clothes treatment combined equipment.
Background
Along with the promotion of living standard, people are growing to intelligent household electrical appliances's demand, and integrated products such as multi-tub washing machine appear in people's life more and more, if adopt a plurality of operating panels, loaded down with trivial details and the cost is higher, through the control circuit integration with a plurality of household electrical appliances together, can realize that an operating panel realizes the function of a plurality of solitary non-integrated products.
The construction of the existing electronic control system of the non-integrated product is usually completed by using a computer board with a modularized design, if the computer board shares an operation panel, the computer board is generally controlled and detected by a single chip microcomputer, the system is complex, the cost is high, and when the program is abnormal, abnormal power-on and power-off conditions are easy to occur.
Therefore, when integrating control circuits of a plurality of home electric appliances, the problem of power supply of the operation panel becomes a difficulty.
Disclosure of Invention
The utility model provides a power supply circuit of an operation panel of a clothes treatment combination device, which aims to solve the problem of power supply of a power supply of the operation panel shared by a plurality of clothes treatment combination devices.
According to an aspect of the present utility model, there is provided a power supply circuit of an operation panel of a laundry treatment combined apparatus including a first laundry treatment apparatus and a second laundry treatment apparatus; the first laundry treating apparatus includes a first power module; the second laundry treating apparatus includes a second power module; the first laundry treating apparatus and the second laundry treating apparatus share one of the operation panels; the power supply circuit of the operation panel includes: the first reverse connection preventing circuit, the second reverse connection preventing circuit, the first switching circuit and the second switching circuit;
the input end of the first reverse connection preventing circuit is electrically connected with the first power supply module, and the output end of the first reverse connection preventing circuit is electrically connected with the operation panel;
the control end of the second switch circuit is electrically connected with the first power supply module, the input end of the second switch circuit is electrically connected with the second power supply module, and the output end of the second switch circuit is electrically connected with the control end of the first switch circuit; the input end of the first switch circuit is electrically connected with the second power supply module, and the output end of the first switch circuit is electrically connected with the input end of the second anti-reverse connection circuit; and the output end of the second reverse connection preventing circuit is electrically connected with the operation panel.
Optionally, the first switch circuit includes a first switch and a second switch;
the input end of the first switch is electrically connected with the second power supply module, and the output end of the first switch is electrically connected with the input end of the second reverse connection preventing circuit; the input end of the second switch and the second power supply module are coupled to a first node, and the control end of the first switch is electrically connected to the first node; the output end of the second switch is grounded; the control end of the second switch is electrically connected with the output end of the second switch circuit.
Optionally, the first switch circuit further includes a first capacitor;
the first end of the first capacitor is electrically connected with the second power module, and the second end of the first capacitor is electrically connected with the first node.
Optionally, the first switch circuit further includes a first resistor;
the first end of the first resistor is electrically connected with the second power module, and the second end of the first resistor is electrically connected with the first node.
Optionally, the first switch circuit further includes a voltage regulator tube;
the first end of the voltage stabilizing tube is electrically connected with the second power module, and the second end of the voltage stabilizing tube is electrically connected with the first node.
Optionally, the second switch includes a first transistor, and the first switch circuit further includes a third resistor;
the first end of the third resistor is electrically connected to the first node, the second end of the third resistor is electrically connected to the input end of the first transistor, and the output end of the first transistor is grounded; the control end of the first transistor is electrically connected with the output end of the second switching circuit.
Optionally, the first switch circuit further includes a fifth resistor;
the first end of the fifth resistor is electrically connected with the output end of the second switch circuit, and the second end of the fifth resistor is electrically connected with the control end of the first transistor.
Optionally, the second switching circuit further includes a second transistor and a sixth resistor;
the input end of the second transistor is coupled with the second power supply module and is connected with a second node, the output end of the second transistor is grounded, and the control end of the second transistor is electrically connected with the first power supply module; the second node is an output end of the second switch circuit;
the first end of the sixth resistor is electrically connected with the control end of the second transistor, and the second end of the sixth resistor is electrically connected with the output end of the second transistor.
Optionally, the second switching circuit further comprises a diode;
the anode of the diode is electrically connected with the output end of the second transistor, and the cathode of the diode is electrically connected with the control end of the second transistor.
Optionally, the second switch circuit further includes a second resistor;
the first end of the second resistor is electrically connected with the first power supply module, and the second end of the second resistor is electrically connected with the control end of the second transistor.
The power supply circuit of the operation panel of the clothes treatment combined equipment can realize that the first clothes treatment equipment and the second clothes treatment equipment share the operation panel, and the first clothes treatment equipment and the second clothes treatment equipment can supply power for the operation panel; the first power supply module of the first clothes treatment equipment and the second clothes treatment equipment can be powered by electricity at the same time to give priority to the first clothes treatment equipment, the first clothes treatment equipment can be powered by the second power supply module of the second clothes treatment equipment to replace the first power supply module of the first clothes treatment equipment to supply power to the operation panel, the power supply of the operation panel can be connected in a seamless mode, and the circuit is simple and reliable and low in cost.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the utility model or to delineate the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a power supply circuit of an operation panel according to the present embodiment;
fig. 2 is a schematic diagram of a power supply circuit of another operation panel according to the present embodiment;
fig. 3 is a schematic diagram of a power supply circuit of another operation panel according to the present embodiment.
Detailed Description
In order to make the present utility model better understood by those skilled in the art, the technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings in this embodiment, and it is apparent that the described embodiment is only a part of the embodiments of the present utility model, not all the embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The power supply circuit of the operation panel provided in this embodiment is suitable for a laundry treatment combination apparatus of a common operation panel composed of a plurality of individual non-integrated products, such as a split washing and drying integrated machine. The laundry treating combination device comprises a first laundry treating device, which may be, for example, a clothes dryer, and a second laundry treating device, which may be, for example, a washing machine, the clothes dryer and the washing machine being stackable to form a split-stack washing and drying machine. The first laundry treating apparatus and the second laundry treating apparatus share one operation panel, the first laundry treating apparatus includes a first power module, the first power module may supply power to the operation panel, and the second laundry treating apparatus includes a second power module, and the second power module may also supply power to the operation panel.
Fig. 1 is a schematic diagram of a power supply circuit of an operation panel according to the present embodiment, and referring to fig. 1, the power supply circuit of the operation panel includes a first anti-reverse circuit 10, a second anti-reverse circuit 20, a first switch circuit 30 and a second switch circuit 40; the input end 11 of the first anti-reverse connection circuit 10 is electrically connected with the first power supply module, and the output end 12 of the first anti-reverse connection circuit 10 is electrically connected with the operation panel; the control end 43 of the second switch circuit 40 is electrically connected with the first power supply module, the input end 41 of the second switch circuit 40 is electrically connected with the second power supply module, and the output end 42 of the second switch circuit 40 is electrically connected with the control end 33 of the first switch circuit 30; the input end 31 of the first switch circuit 30 is electrically connected with the second power supply module, and the output end 32 of the first switch circuit 30 is electrically connected with the input end 21 of the second anti-reverse connection circuit 20; the output 22 of the second anti-reverse circuit 20 is electrically connected to the operating panel.
It is to be understood that fig. 1 is merely an example illustrating the positional relationship of the first switch circuit 30 and the second anti-reverse connection circuit 20, and the positional relationship of the first switch circuit 30 and the second anti-reverse connection circuit 20 may be interchanged, which is not particularly limited in this embodiment.
The first reverse connection preventing circuit 10 includes a zener diode D2, an anode of the zener diode D2 is electrically connected to the first power module, and a cathode of the zener diode D2 is electrically connected to the operation panel; the second anti-reverse connection circuit 20 includes a zener diode D1, an anode of the zener diode D1 is electrically connected to the second power module through the first switch circuit 30, and a cathode of the zener diode D1 is electrically connected to the operation panel. If only the first laundry treating apparatus is powered on, the first power module in the first laundry treating apparatus may supply power to the operation panel through the first reverse connection preventing circuit 10; if only the second laundry treating apparatus is powered on, the first switching circuit 30 is turned on under the control of the first power module and the second switching circuit 40, and the second power module in the second laundry treating apparatus can supply power to the operation panel through the first switching circuit 30 and the second reverse connection preventing circuit 20; the first laundry treating apparatus and the second laundry treating apparatus are powered simultaneously, and the first switching circuit 30 is turned off under the control of the first power module and the second switching circuit 40, and the first power module in the first laundry treating apparatus supplies power to the operation panel; if the first clothes treatment equipment and the second clothes treatment equipment are powered on at the same time and the second clothes treatment equipment is powered off suddenly, the first power module in the first clothes treatment equipment is not influenced to continuously supply power to the operation panel; if the first laundry treating apparatus and the second laundry treating apparatus are powered on at the same time and the first laundry treating apparatus suddenly fails, the first switch circuit 30 may be turned on under the control of the first power module and the second switch circuit 40, and the second power module of the second laundry treating apparatus may take over the first power module of the first laundry treating apparatus to supply power to the operation panel.
The power supply circuit of the operation panel shared by the stacking and washing integrated machine can realize that the operation panel is shared by the first clothes treatment equipment and the second clothes treatment equipment, and the operation panel can be powered by the first clothes treatment equipment and the second clothes treatment equipment; the first power supply module of the first clothes treatment equipment and the second clothes treatment equipment can be powered by electricity at the same time to give priority to the first clothes treatment equipment, the first clothes treatment equipment can be powered by the second power supply module of the second clothes treatment equipment to replace the first power supply module of the first clothes treatment equipment to supply power to the operation panel, the power supply of the operation panel can be connected in a seamless mode, and the circuit is simple and reliable and low in cost.
Optionally, fig. 2 is a schematic diagram of a power supply circuit of another operation panel provided in this embodiment, and referring to fig. 2, the first switch circuit 30 includes a first switch Q1 and a second switch Q2; the input end of the first switch Q1 is electrically connected with the second power supply module, and the output end of the first switch Q1 is electrically connected with the input end 21 of the second anti-reverse circuit 20; the input end of the second switch Q2 and the second power supply module are coupled to the first node N1, the control end of the first switch Q1 is electrically connected to the first node N1, and the output end of the second switch Q2 is grounded; the control terminal of the second switch Q2 is electrically connected to the output terminal 42 of the second switching circuit 40.
For example, referring to fig. 2, the second switch circuit 40 may output a control signal to the control terminal of the second switch Q2 according to the electrical signal of the first power module to control on/off of the second switch Q2, where the on/off of the second switch Q2 may cause the potential of the first node N1 to be different, so as to control on/off of the first switch Q1. For example, when the first power module is powered, the second switch circuit 40 and the second switch Q2 can indirectly control the first switch Q1 to be turned off, i.e. when the first power module is powered, the first power module preferentially supplies power to the operation panel; when the first power module is not powered, the second switch circuit 40 and the second switch Q2 can indirectly control the first switch Q1 to be turned on, that is, when the first power module is not powered, the second power module takes over the first power module to supply power to the operation panel.
Optionally, with continued reference to fig. 2, the first switch circuit 30 further includes a first resistor R1; the first end of the first resistor R1 is electrically connected to the second power module, and the second end of the first resistor R1 is electrically connected to the first node N1.
For example, taking the first switch Q1 as a PMOS transistor, the first resistor R1 is connected between the gate and the source of the PMOS transistor, so as to perform a biasing function, and enable the gate of the PMOS transistor to be effectively turned on when connected to a low-level electrical signal.
Optionally, the first switch circuit 30 further includes a voltage stabilizing tube TVS1, where a first end of the voltage stabilizing tube TVS1 is electrically connected to the second power module, and a second end of the voltage stabilizing tube TVS1 is electrically connected to the first node N1, so that a voltage difference between the gate and the source can be stabilized, which is favorable for continuous conduction of the first switch circuit 30, so that the second power module can stably supply power to the operation panel.
Optionally, the first switch circuit 30 further includes a first capacitor C1; the first end of the first capacitor C1 is electrically connected to the second power module, and the second end of the first capacitor C1 is electrically connected to the first node N1. Thus, the first switch Q1 is prevented from being suddenly turned on, and the operation panel is prevented from being damaged due to overlarge transient current.
Optionally, the second switch Q2 includes a first transistor, and the first switch circuit 30 further includes a third resistor R3; the first end of the third resistor R3 is electrically connected to the first node N1, the second end of the third resistor R3 is electrically connected with the input end of the first transistor, and the output end of the first transistor is grounded; the control terminal of the first transistor is electrically connected to the output terminal of the second switching circuit 40. Taking the first transistor as an NPN transistor, the first switch Q1 is a PMOS transistor as an example, when the base electrode of the NPN transistor receives an electric signal with higher level, the second switch Q2 is turned on, the potential of the first node N1 is pulled down, the grid electrode of the PMOS transistor is turned on when the grid electrode of the PMOS transistor is connected with low potential, the first switch Q1 is further controlled to be turned on, and the second power module can supply power for the operation panel. The third resistor R3 and the first resistor R1 are connected in series, and can play roles in current limiting and voltage dividing, and control the potential of the first node N1, the potential of the first transistor input end and the potential current of the first transistor input end, so that the first open circuit 30 can effectively operate.
Optionally, the first switching circuit 30 further includes a fifth resistor R5; a first end of the fifth resistor R5 is electrically connected to the output 42 of the second switching circuit 40, and a second end of the fifth resistor R5 is electrically connected to the control terminal of the first transistor. The fifth resistor R5 may serve to limit the control terminal current and protect the first transistor.
Optionally, fig. 3 is a schematic diagram of a power supply circuit of another operation panel provided in an embodiment, and referring to fig. 3, the second switch circuit 40 includes a second transistor Q3 and a sixth resistor R6; the input end of the second transistor Q3 and the second power supply module are coupled to the second node N2, and the output end of the second transistor Q3 is grounded; the control end of the second transistor Q3 is electrically connected with the first power supply module; the second node N2 is an output end 42 of the second switch circuit 40, and a control end of the second switch Q2 is electrically connected to the second node N2; the first end of the sixth resistor R6 is electrically connected to the control end of the second transistor Q3, and the second end of the third resistor R6 is electrically connected to the output end of the second transistor Q3.
For example, the second transistor Q3 may be an NPN transistor, and if the second switch Q2 also includes an NPN transistor, the second transistor Q3 is turned on when the base of the second transistor Q3 receives the high-level electrical signal of the first power module, so that the potential of the second node N2 is pulled down, the base of the NPN transistor in the second switch Q2 receives the low-level signal to be turned off, and then the first switch Q1 is turned off, and the electrical signal of the second power module is not transmitted to the operation panel; the base of the second transistor Q3 does not receive the high-level electrical signal of the first power supply module, the second transistor Q3 is turned off, the high-level electrical signal of the second power supply module can be output to the second node N2, the base of the NPN tube in the second switch Q2 receives the high-level signal to be turned on, the first switch Q1 is controlled to be turned on, the second power supply module supplies power to the operation panel, and the third resistor R6 can ensure that the NPN tube of the second transistor Q3 is reliably turned off when the control end of the second transistor Q3 does not have the electrical signal.
Optionally, the second switching circuit 40 further includes a fourth resistor R4 connected in series between the second power module and the second node N2, which can perform a voltage division function to generate a voltage drop, and control the potential of the second node N2, so that the second transistor Q3 can operate in a saturated state.
Optionally, with continued reference to fig. 3, the second switching circuit 40 further includes a diode D3; an anode of the diode D3 is electrically connected to the output terminal of the second transistor Q3, and a cathode of the diode D3 is electrically connected to the control terminal of the second transistor Q3. The diode D3 is connected in anti-parallel to the control end and the output end of the second transistor Q3, so as to form potential clamping, for example, the second transistor Q3 is an NPN tube, and the diode D3 is connected in anti-parallel to the base and the emitter of the NPN tube, so that the emitter junction with the high level applied to the emitter junction in the opposite direction is prevented from being broken down.
Optionally, the second switching circuit further includes a second resistor R2; the first end of the second resistor R2 is electrically connected with the first power supply module, and the second end of the second resistor R2 is electrically connected with the control end of the second transistor Q3, so that the current of the control end can be limited, and the second transistor Q3 is protected.
The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A power supply circuit of an operation panel of a laundry treatment combining apparatus, characterized in that the laundry treatment combining apparatus includes a first laundry treatment apparatus and a second laundry treatment apparatus; the first laundry treating apparatus includes a first power module; the second laundry treating apparatus includes a second power module; the second laundry treating apparatus and the first laundry treating apparatus share one of the operation panels; the power supply circuit of the operation panel includes: the first reverse connection preventing circuit, the second reverse connection preventing circuit, the first switching circuit and the second switching circuit;
the input end of the first reverse connection preventing circuit is electrically connected with the first power supply module, and the output end of the first reverse connection preventing circuit is electrically connected with the operation panel;
the control end of the second switch circuit is electrically connected with the first power supply module, the input end of the second switch circuit is electrically connected with the second power supply module, and the output end of the second switch circuit is electrically connected with the control end of the first switch circuit; the input end of the first switch circuit is electrically connected with the second power supply module, and the output end of the first switch circuit is electrically connected with the input end of the second anti-reverse connection circuit; and the output end of the second reverse connection preventing circuit is electrically connected with the operation panel.
2. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 1, wherein the first switch circuit includes a first switch and a second switch;
the input end of the first switch is electrically connected with the second power supply module, and the output end of the first switch is electrically connected with the input end of the second reverse connection preventing circuit; the input end of the second switch and the second power supply module are coupled to a first node, the control end of the first switch is electrically connected to the first node, and the output end of the second switch is grounded; the control end of the second switch is electrically connected with the output end of the second switch circuit.
3. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 2, wherein the first switch circuit further comprises a first capacitor;
the first end of the first capacitor is electrically connected with the second power module, and the second end of the first capacitor is electrically connected with the first node.
4. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 2, wherein the first switch circuit further comprises a first resistor;
the first end of the first resistor is electrically connected with the second power module, and the second end of the first resistor is electrically connected with the first node.
5. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 4, wherein the first switching circuit further comprises a regulator tube;
the first end of the voltage stabilizing tube is electrically connected with the second power module, and the second end of the voltage stabilizing tube is electrically connected with the first node.
6. The power supply circuit of an operation panel of a laundry treatment combination device according to claim 4, wherein the second switch comprises a first transistor, the first switch circuit further comprising a third resistor;
the first end of the third resistor is electrically connected to the first node, the second end of the third resistor is electrically connected to the input end of the first transistor, and the output end of the first transistor is grounded; the control end of the first transistor is electrically connected with the output end of the second switching circuit.
7. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 6, wherein the first switch circuit further comprises a fifth resistor;
the first end of the fifth resistor is electrically connected with the output end of the second switch circuit, and the second end of the fifth resistor is electrically connected with the control end of the first transistor.
8. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 2, wherein the second switching circuit includes a second transistor and a sixth resistor;
the input end of the second transistor is coupled with the second power supply module and is connected with a second node, the output end of the second transistor is grounded, and the control end of the second switch is electrically connected with the first power supply module; the second node is an output end of the second switch circuit;
the first end of the sixth resistor is electrically connected with the control end of the second transistor, and the second end of the sixth resistor is electrically connected with the output end of the second transistor.
9. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 8, wherein the second switching circuit further comprises a diode;
the anode of the diode is electrically connected with the output end of the second transistor, and the cathode of the diode is electrically connected with the control end of the second transistor.
10. The power supply circuit of an operation panel of a laundry treatment combining apparatus according to claim 8, wherein the second switching circuit further comprises a second resistor;
the first end of the second resistor is electrically connected with the first power supply module, and the second end of the second resistor is electrically connected with the control end of the second transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222657207.9U CN219059437U (en) | 2022-10-10 | 2022-10-10 | Power supply circuit of operation panel of clothes treatment combined equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222657207.9U CN219059437U (en) | 2022-10-10 | 2022-10-10 | Power supply circuit of operation panel of clothes treatment combined equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219059437U true CN219059437U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222657207.9U Active CN219059437U (en) | 2022-10-10 | 2022-10-10 | Power supply circuit of operation panel of clothes treatment combined equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219059437U (en) |
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2022
- 2022-10-10 CN CN202222657207.9U patent/CN219059437U/en active Active
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