CN114448272A - Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance - Google Patents
Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance Download PDFInfo
- Publication number
- CN114448272A CN114448272A CN202210163253.5A CN202210163253A CN114448272A CN 114448272 A CN114448272 A CN 114448272A CN 202210163253 A CN202210163253 A CN 202210163253A CN 114448272 A CN114448272 A CN 114448272A
- Authority
- CN
- China
- Prior art keywords
- unit
- power supply
- auxiliary power
- rectifying
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a main transformer integrated controller, an auxiliary power supply circuit thereof and household electrical appliances, wherein the auxiliary power supply circuit comprises a first rectifying unit and an auxiliary power supply unit, the first rectifying unit and a motor driving circuit in the main transformer integrated controller share a zero line branch circuit so as to provide a first direct current for the auxiliary power supply unit through a soft start unit on the shared zero line branch circuit, and the auxiliary power supply unit respectively supplies power to a main control unit and a motor driving unit in the main transformer integrated controller according to the first direct current. The circuit simplifies the circuit structure and reduces the hardware cost on the basis of keeping the power supply function through the multiplexing of the soft start unit.
Description
Technical Field
The invention relates to the technical field of power supply of a main transformer integrated controller, in particular to a main transformer integrated controller, an auxiliary power supply circuit of the main transformer integrated controller and household electrical appliances.
Background
Generally, a main transformer integrated controller comprises two functional units, namely a main control functional unit and a motor driving functional unit. For the two functional units, a special auxiliary power supply circuit is generally designed to meet the requirements, but more electronic elements are used, the circuit structure is complex, and the hardware cost is high.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the first purpose of the invention is to provide an auxiliary power supply circuit of a main transformer integrated controller, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to a main control unit and a motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
The second purpose of the invention is to provide a main transformer integrated controller.
A third object of the present invention is to provide a home appliance.
In order to achieve the above object, a first embodiment of the present invention provides an auxiliary power supply circuit of a main transformer integrated controller, including: the main control unit and the motor driving unit in the main transformer integrated controller are respectively supplied with power according to the first direct current.
According to the auxiliary power supply circuit provided by the embodiment of the invention, the first rectifying unit and the motor driving circuit in the main transformer integrated controller share the zero line branch circuit, so that a first direct current is provided for the auxiliary power supply unit through the soft start unit on the shared zero line branch circuit, and the auxiliary power supply unit respectively supplies power to the main control unit and the motor driving unit in the main transformer integrated controller according to the first direct current, therefore, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
According to one embodiment of the present invention, a first rectifying unit includes: a first diode having an anode connected to a first power line; and the positive end of the first electrolytic capacitor is connected with the cathode of the first diode and is provided with a first node, the negative end of the first electrolytic capacitor is connected to the negative output end of the second rectifying unit in the motor driving loop, and the first node and the negative end of the first electrolytic capacitor are used as the positive and negative output ends of the first rectifying unit.
According to an embodiment of the present invention, the second rectifying unit is a full-bridge rectifying circuit, a positive input end of the full-bridge rectifying circuit is connected to the second live wire, a negative input end of the full-bridge rectifying circuit is connected to the neutral line branch, and positive and negative output ends of the full-bridge rectifying circuit are connected to the motor driving unit.
According to one embodiment of the invention, the soft start unit comprises a soft start resistor and a controllable switch, the soft start resistor is connected in series with the zero line branch, and the controllable switch is connected with the soft start resistor in parallel.
According to one embodiment of the invention, the controllable switch is configured to be open when the complete machine is in standby and closed when the complete machine is in operation.
According to one embodiment of the invention, a second electrolytic capacitor is connected in parallel between the positive output end and the negative output end of the second rectifying unit, and the capacitance value of the second electrolytic capacitor is larger than that of the first electrolytic capacitor.
According to an embodiment of the present invention, the auxiliary power supply circuit further includes a second diode, an anode of the second diode is connected to the positive output terminal of the second rectifying unit, and a cathode of the second diode is connected to the first node, so that the auxiliary power supply unit can simultaneously draw energy from the first electrolytic capacitor and the second electrolytic capacitor when the whole machine is stopped.
According to one embodiment of the invention, the main control unit is connected with the motor driving unit, the main control unit generates a control instruction according to a user instruction and sends the control instruction to the motor driving unit, and the motor driving unit performs driving control on the motor according to the control instruction.
In order to achieve the above object, a main transformer integrated controller according to a second aspect of the present invention includes the aforementioned auxiliary power supply circuit.
According to the main transformer integrated controller provided by the embodiment of the invention, through the auxiliary power supply circuit, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
In order to achieve the above object, a third embodiment of the present invention provides a household electrical appliance, including the aforementioned auxiliary power supply circuit.
According to the household appliance provided by the embodiment of the invention, through the auxiliary power supply circuit, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an auxiliary power supply circuit of a main transformer integrated controller according to an embodiment of the invention;
fig. 2 is a circuit diagram of an auxiliary power supply circuit of the main transformer integrated controller according to one embodiment of the present invention;
fig. 3a is a current trend diagram of the auxiliary power supply circuit when the main transformer integrated controller shown in fig. 2 is in a complete machine standby state;
FIG. 3b is a current trend diagram of the auxiliary power supply circuit when the main transformer integrated controller shown in FIG. 2 is in complete machine operation;
fig. 4 is a circuit diagram of an auxiliary power supply circuit of the main transformer integrated controller according to another embodiment of the present invention;
fig. 5 is a current flow diagram of the auxiliary power supply circuit when the main transformer integrated controller shown in fig. 4 is in a complete machine shutdown state.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
The main transformer integrated controller, the auxiliary power supply circuit thereof and the household appliance provided by the embodiment of the invention are described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an auxiliary power supply circuit of a main transformer integrated controller according to an embodiment of the present invention.
Referring to fig. 1, the auxiliary power supply circuit 100 includes: a first rectifying unit 110 and an auxiliary power supply unit 120. The first rectifying unit 110 shares the neutral line branch N with the motor driving circuit 200 in the main transformer integrated controller, so as to provide a first direct current to the auxiliary power supply unit 120 through the soft start unit 210 on the shared neutral line branch N, and the auxiliary power supply unit 120 respectively provides power to the main control unit 310 and the motor driving unit 220 in the main transformer integrated controller according to the first direct current.
Specifically, referring to fig. 1, a positive input end of the first rectifying unit 110 is connected to the first live line L1, a negative input end of the first rectifying unit 110 is connected to the soft start unit 210 on the neutral line branch N, positive and negative output ends of the first rectifying unit 110 are correspondingly connected to positive and negative input ends of the auxiliary power unit 120, and the first rectifying unit 110 is configured to rectify an alternating current between the first live line L1 and the neutral line branch N into a first direct current for supplying to the auxiliary power unit 120. The auxiliary power supply unit 120 is connected to the main control unit 310 and the motor driving unit 220, respectively, and the auxiliary power supply unit 120 is configured to supply power to the main control unit 310 and the motor driving unit 220 according to a first direct current.
The positive input end of the second rectifying unit 230 in the motor driving circuit 200 is connected to the second live wire L2, the negative input end of the second rectifying unit 230 is connected to the soft start unit 210 on the neutral line branch N, the positive and negative output ends of the second rectifying unit 230 are correspondingly connected to the positive and negative input ends of the motor driving unit 220, and the second rectifying unit 230 is configured to rectify the alternating current between the second live wire L2 and the neutral line branch N into the second direct current for supplying to the motor driving unit 220. The main control unit 310 is connected to the motor driving unit 220 and other peripherals, respectively, and the main control unit 310 is configured to generate a control command according to a user command and issue the control command to the motor driving unit 220 and/or other peripherals. The motor driving unit 220 is connected to the motor, and the motor driving unit 220 is configured to receive the control instruction issued by the main control unit 310, and convert the second direct current based on the control instruction to drive and control the motor, so that the motor operates according to the user requirement.
It should be noted that the working state of the master control integrated controller may include a complete machine standby state and a complete machine working state.
In the standby state, the positive input terminal of the first rectifying unit 110 is connected to the first live line L1, the positive input terminal of the second rectifying unit 230 is disconnected from the second live line L2, the first rectifying unit 110 operates and provides a first direct current to the auxiliary power unit 120, and the auxiliary power unit 120 supplies power to the main control unit 310 (based on low power consumption, only some of the electrical appliances in the main control unit 310 may be supplied with power, and the motor driving unit 220 is not supplied with power). Since the soft start unit 210 in the motor driving circuit 200 is used to implement soft start of the motor, the soft start unit 210 is normally in a high-resistance state, and is in a short-circuit state after the motor is started, so that the soft start unit 210 is in a high-resistance state in a standby state. In the standby state, the auxiliary power unit 120 only supplies power to a few electrical appliances, and the required power is small, so even if the soft start unit 210 is in the high resistance state, the auxiliary power unit 120 can still work normally.
In an operating state, a positive input end of the first rectifying unit 110 is connected to the first live wire L1, a positive input end of the second rectifying unit 230 is connected to the second live wire L2, the first rectifying unit 110 operates and provides a first direct current to the auxiliary power unit 120, the auxiliary power unit 120 supplies power to the main control unit 310 and the motor driving unit 220, meanwhile, the second rectifying unit 230 operates and provides a second direct current to the motor driving unit 220, the motor driving unit 220 drives the motor to operate under the control of the main control unit 310, at this time, the required power of the auxiliary power unit 120 is large, but after the motor is started, the soft start unit 210 is in a complete short-circuit state, so the auxiliary power unit 120 is not affected by the soft start unit 210 and can supply power normally.
It should be noted that, when the main control integrated controller is powered on, since the soft start unit 210 is in a high resistance state, which is equivalent to a power-on buffer unit of the auxiliary power supply circuit 100, the impact current during power-on can be limited, thereby implementing power-on protection for the main control integrated controller.
Therefore, by utilizing the characteristics of low standby power consumption of the auxiliary power supply and high power consumption of the whole machine during operation, the soft start unit in the motor driving loop is utilized to replace the power-on buffer unit of the auxiliary power supply under the standby working condition, and the power consumption required by the auxiliary power supply is improved during the operation of the whole machine, and the soft start unit is already in a short-circuit state at the moment, so that the normal operation of the auxiliary power supply is not influenced. Through the design, on one hand, the two traditional independent auxiliary power circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the soft start unit of the motor driving circuit is multiplexed, so that the power-on buffer unit of the auxiliary power supply can be omitted, the circuit structure is further simplified on the basis of keeping the power supply function, and the hardware cost is reduced.
In some embodiments, as shown with reference to fig. 2, the first rectification unit 110 includes: a first diode D1 and a first electrolytic capacitor C1. Wherein the anode of the first diode D1 is connected to a first live line L1; the positive terminal of the first electrolytic capacitor C1 is connected to the cathode of the first diode D1 and has a first node J1, the negative terminal of the first electrolytic capacitor C1 is connected to the negative output terminal of the second rectifying unit 230 in the motor drive circuit 200, and the first node J1 and the negative terminal of the first electrolytic capacitor C1 serve as the positive and negative output terminals of the first rectifying unit 110.
The second rectifying unit 230 is a full-bridge rectifying circuit, the positive input end of the full-bridge rectifying circuit is connected to the second live wire L2, the negative input end of the full-bridge rectifying circuit is connected to the zero line branch N, and the positive and negative output ends of the full-bridge rectifying circuit are connected to the motor driving unit 220. Further, the full-bridge rectifier circuit may include: a first rectifying diode D21, a second rectifying diode D22, a third rectifying diode D23, and a fourth rectifying diode D24, wherein the anode of the first rectifying diode D21 is connected with the cathode of the third rectifying diode D23, and the connection point is connected with the second live wire L2 as the positive input end of the full-bridge rectification circuit, the anode of the second rectifying diode D22 is connected with the cathode of the fourth rectifying diode D24, and the connection point is used as the negative input end of the full bridge rectification circuit to be connected with the soft start unit 210 on the zero line branch circuit N, the cathode of the first rectification diode D21 is connected with the cathode of the second rectification diode D22, and the connection point is connected to the motor driving unit 210 as the positive output terminal of the full-bridge rectifying circuit, the anode of the third rectifying diode D23 is connected to the anode of the fourth rectifying diode D24, and the connection point is connected as the negative output terminal of the full-bridge rectification circuit to the motor driving unit 220 and the negative terminal of the first electrolytic capacitor C1, respectively.
The soft start unit 210 includes: the soft start circuit comprises a soft start resistor R and a controllable switch S, wherein the soft start resistor R is connected in series on a zero line branch N, and the controllable switch S is connected in parallel with the soft start resistor R. The controllable switch S can be a relay and is constructed to be disconnected when the whole machine is in standby and to be closed when the whole machine works, wherein the controllable switch S is disconnected when the whole machine is in standby, and the soft starting resistor R is connected into the zero line branch N; when the whole machine works, the controllable switch S is closed, the soft start resistor R is short-circuited, and the soft start resistor R is cut off from the zero line branch N.
It should be noted that the first diode D1 and the first electrolytic capacitor C1 in the first rectifying unit 110 constitute a typical half-wave rectifying circuit, and the second rectifying unit 230 is a typical full-wave rectifying circuit, which belongs to the conventional prior art, and the operation principle thereof is not described herein, and through these two rectifying circuits, the ac power is rectified into dc power and outputted to the respectively connected auxiliary power supply unit 120 or motor driving unit 220. The soft start resistor R in the soft start unit 210 limits the peak value of the capacitor impact current during power-on in a manner of a series resistor to protect the circuit, mainly in order to avoid that the power-on impact current of the electrolytic capacitor in the rectifying circuit is too high; the controllable switch S is constructed to be disconnected when the whole main control integrated controller is in standby and closed when the whole main control integrated controller works so as to control the connection or disconnection of the soft start resistor R, so that the current impact protection is realized when the auxiliary power supply is electrified while the soft start of the motor is ensured, and the normal work of the auxiliary power supply is not influenced.
Specifically, when the main control integrated controller is in a standby state, the positive input terminal of the first rectifying unit 110 is connected to the first live line L1, the positive input terminal of the second rectifying unit 230 is disconnected from the second live line L2, the controllable switch S is disconnected, and the current path of the auxiliary power supply circuit 100 is as shown in fig. 3a, that is, the current flows out from the first live line L1, sequentially passes through the first diode D1, the first electrolytic capacitor C1, the fourth rectifying diode D24 and the soft start resistor R, and finally flows into the neutral line branch N, and at this time, in a positive half-cycle of the alternating current, the alternating current charges the first electrolytic capacitor C1 through the first diode D1; during the negative half-cycle of the alternating current, the alternating current stops charging the first electrolytic capacitor C1, the first electrolytic capacitor C1 discharges, and the first direct current is provided to power the auxiliary power unit 120 due to the unidirectional conductivity of the diode. At this time, the power required by the auxiliary power supply unit 120 is smaller, so that the auxiliary power supply unit 120 can still normally operate in a state where the soft start resistor R is connected.
When the main control integrated controller is in a complete machine working state, the positive input end of the first rectifying unit 110 is connected to the first live wire L1, the positive input end of the second rectifying unit 230 is connected to the second live wire L2, the controllable switch S is closed, and the current path of the auxiliary power supply circuit 100 is as shown in fig. 3b, at this time, the circuit of the first rectifying unit 110 is no longer affected by the voltage division of the original series soft start resistor R, the output power is increased, and the high power requirement required by the auxiliary power supply unit 120 is met; meanwhile, the second rectifying unit 230 may output a high-power direct current to the motor driving unit 220 to meet a high-power requirement during the operation of the motor.
When the main control integrated controller is switched to the complete machine shutdown state from other working states, the positive input end of the first rectifying unit 110 is disconnected from the first live wire L1, the positive input end of the second rectifying unit 230 is disconnected from the second live wire L2, at this time, the first electrolytic capacitor C1 discharges, and the auxiliary power supply unit 120 can keep supplying power in a short time, so that time buffering is provided for complete machine shutdown and software data storage of the main control integrated controller, and the functions of protecting circuits and data protection are achieved.
In the embodiment, on one hand, two traditional independent auxiliary power circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the soft start unit of the motor driving circuit is multiplexed, so that a power-on buffer unit (comprising a power-on buffer resistor) of an auxiliary power supply can be omitted, the power supply requirement of the main control integrated controller in each working state can be met, the circuit structure can be further simplified, and compared with a non-multiplexing mode, the circuit control system has the characteristics of small circuit change and obvious cost reduction.
Further, referring to fig. 4, a second electrolytic capacitor C2 is connected in parallel between the positive and negative output terminals of the second rectifying unit 230, and the capacitance value of the second electrolytic capacitor C2 is greater than that of the first electrolytic capacitor C1. In the motor driving circuit 200, the second electrolytic capacitor C2 has the functions of voltage stabilization and filtering, so that the second rectifying unit 230 outputs more stable and high-quality direct current, and thus, the second electrolytic capacitor C2 has the technical effects of improving the circuit rectifying effect and optimizing the circuit.
Further, referring to fig. 4, the auxiliary power supply circuit further includes a second diode D2, an anode of the second diode D2 is connected to the positive output terminal of the second rectifying unit 230, and a cathode of the second diode D2 is connected to the first node J1, so that the auxiliary power supply unit 120 can simultaneously draw energy from the first electrolytic capacitor C1 and the second electrolytic capacitor C2 when the whole machine is stopped.
Specifically, when the main control integrated controller is switched from other working states to the complete machine shutdown state, since the capacitance value of the second electrolytic capacitor C2 is greater than that of the first electrolytic capacitor C1, the second electrolytic capacitor C2 discharges the first electrolytic capacitor C1 through the second diode D2, and the discharge current path is as shown in fig. 5 until the voltage at the two ends of the first electrolytic capacitor C1 is lower than the voltage required by the auxiliary power supply unit 120.
In summary, according to the auxiliary power supply circuit of the embodiment of the invention, the first rectifying unit and the motor driving circuit in the main transformer integrated controller share the zero line branch, so that the soft start unit on the shared zero line branch supplies the first direct current to the auxiliary power supply unit, and the auxiliary power supply unit respectively supplies power to the main control unit and the motor driving unit in the main transformer integrated controller according to the first direct current, so that, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, thereby effectively reducing the use of electronic components and reducing the hardware cost; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
In some embodiments, a master control integrated controller is also provided, which comprises the auxiliary power supply circuit.
According to the main transformer integrated controller provided by the embodiment of the invention, through the auxiliary power supply circuit, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
In some embodiments, a household electrical appliance is also provided, which includes the aforementioned auxiliary power supply circuit. The household appliances include, but are not limited to, washing machines, clothes dryers, air conditioners, and the like.
According to the household appliance provided by the embodiment of the invention, through the auxiliary power supply circuit, on one hand, two traditional independent auxiliary power supply circuits are reduced into one circuit to supply power to the main control unit and the motor driving unit in the main transformer integrated controller, so that the use of electronic elements is effectively reduced, and the hardware cost is reduced; on the other hand, the circuit structure is further simplified and the hardware cost is reduced on the basis of keeping the power supply function through multiplexing with the soft start unit of the motor driving loop.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a main auxiliary power supply circuit who becomes integrated controller, its characterized in that, including first rectification unit and auxiliary power supply unit, first rectification unit with motor drive circuit sharing zero line branch road in the main integrated controller that becomes to through sharing soft start unit on the zero line branch road, to the auxiliary power supply unit provides first direct current, the auxiliary power supply unit basis first direct current gives respectively main control unit and the motor drive unit power supply in the main integrated controller that becomes.
2. The auxiliary power supply circuit according to claim 1, wherein said first rectifying unit comprises:
a first diode having an anode connected to a first live line;
and the positive end of the first electrolytic capacitor is connected with the cathode of the first diode and is provided with a first node, the negative end of the first electrolytic capacitor is connected to the negative output end of a second rectifying unit in the motor driving circuit, and the first node and the negative end of the first electrolytic capacitor are used as the positive and negative output ends of the first rectifying unit.
3. The auxiliary power supply circuit according to claim 2, wherein the second rectifying unit is a full-bridge rectifying circuit, a positive input end of the full-bridge rectifying circuit is connected to the second live wire, a negative input end of the full-bridge rectifying circuit is connected to the zero line branch, and positive and negative output ends of the full-bridge rectifying circuit are connected to the motor driving unit.
4. The auxiliary power supply circuit according to claim 3, wherein said soft start unit comprises a soft start resistor and a controllable switch, said soft start resistor is connected in series to said neutral branch, and said controllable switch is connected in parallel to said soft start resistor.
5. The auxiliary power supply circuit of claim 4, wherein the controllable switch is configured to open when the machine is in standby and to close when the machine is in operation.
6. The auxiliary power supply circuit according to claim 3, wherein a second electrolytic capacitor is connected in parallel between the positive output terminal and the negative output terminal of the second rectifying unit, and the capacitance value of the second electrolytic capacitor is greater than that of the first electrolytic capacitor.
7. The auxiliary power supply circuit according to claim 6, further comprising a second diode, wherein an anode of the second diode is connected to the positive output terminal of the second rectifying unit, and a cathode of the second diode is connected to the first node, so that the auxiliary power supply unit simultaneously draws energy from the first electrolytic capacitor and the second electrolytic capacitor when the whole machine is stopped.
8. The auxiliary power supply circuit according to any one of claims 1 to 7, wherein the main control unit is connected to the motor driving unit, the main control unit generates a control command according to a user command and sends the control command to the motor driving unit, and the motor driving unit performs driving control on a motor according to the control command.
9. A main transformer integrated controller comprising an auxiliary power supply circuit according to any one of claims 1 to 9.
10. An electric household appliance comprising an auxiliary power supply circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163253.5A CN114448272A (en) | 2022-02-22 | 2022-02-22 | Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163253.5A CN114448272A (en) | 2022-02-22 | 2022-02-22 | Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114448272A true CN114448272A (en) | 2022-05-06 |
Family
ID=81374473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210163253.5A Pending CN114448272A (en) | 2022-02-22 | 2022-02-22 | Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114448272A (en) |
-
2022
- 2022-02-22 CN CN202210163253.5A patent/CN114448272A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6366820B2 (en) | Power supply device and air conditioner | |
| US11496067B2 (en) | Power conversion apparatus with dual-mode control | |
| CN104467437A (en) | Low stand-by power consumption switching power supply | |
| EP3503366B1 (en) | Uninterruptible power supply apparatus | |
| JP4577837B2 (en) | Switching power supply | |
| CN217428007U (en) | Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance | |
| CN204721211U (en) | The power supply circuits of inverter and there are its household electrical appliance | |
| CN218897081U (en) | Anti-surge LED driving power supply | |
| CN204721244U (en) | The power supply circuits of inverter and there are its household electrical appliance | |
| CN114448272A (en) | Main transformer integrated controller, auxiliary power supply circuit thereof and household appliance | |
| US10951029B2 (en) | Power source input device for both ac and dc power sources | |
| CN111052582B (en) | Frequency converter, frequency converter assembly and control method of frequency converter assembly | |
| CN214205335U (en) | Voltage adjusting circuit of switching power supply and power supply system | |
| CN110829817B (en) | Control circuit, control method and device of control circuit and air conditioner | |
| CN211630096U (en) | Safety control circuit for electromagnetic cooking appliance and electromagnetic cooking appliance | |
| CN113746354A (en) | Micro-power-consumption bridge-type rectification auxiliary power supply, power circuit and electric equipment | |
| CN209748405U (en) | Household electrical appliance and passive power factor correction circuit thereof | |
| CN106787644B (en) | Power management system and power supply method thereof | |
| CN113587377A (en) | Multi-split air conditioner and energy-saving control method of air conditioner | |
| CN205046354U (en) | Switch control circuit and washing machine for washing machine | |
| WO2024198917A1 (en) | Connection circuit and charging gun | |
| CN217508615U (en) | Power supply circuit, air condensing units and air conditioner | |
| CN215601206U (en) | Power supply circuit, circuit board and electrical apparatus | |
| CN215871187U (en) | Discharge circuit, control circuit, controller and electrical equipment | |
| CN220855619U (en) | Computer power supply with dynamic voltage compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |