CN106130318A - Power panel - Google Patents
Power panel Download PDFInfo
- Publication number
- CN106130318A CN106130318A CN201610599608.XA CN201610599608A CN106130318A CN 106130318 A CN106130318 A CN 106130318A CN 201610599608 A CN201610599608 A CN 201610599608A CN 106130318 A CN106130318 A CN 106130318A
- Authority
- CN
- China
- Prior art keywords
- resistor
- capacitor
- terminal
- seventy
- twenty
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims description 148
- 238000001914 filtration Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000011664 signaling Effects 0.000 abstract 2
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 13
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 101000622427 Homo sapiens Vang-like protein 1 Proteins 0.000 description 2
- 102100023517 Vang-like protein 1 Human genes 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 102100027241 Adenylyl cyclase-associated protein 1 Human genes 0.000 description 1
- 108010077333 CAP1-6D Proteins 0.000 description 1
- 101000622430 Homo sapiens Vang-like protein 2 Proteins 0.000 description 1
- 102100023520 Vang-like protein 2 Human genes 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108010031970 prostasin Proteins 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
- Power Conversion In General (AREA)
Abstract
The open a kind of power panel of the present invention, including main control circuit, power module, for connecting the keystroke interface module of main control circuit and keypad, for realizing carrying out between main control circuit and display module the display communication module of communication and for realizing main control circuit, the load that is controlled of load being driven module, main control circuit includes power input, push button signalling receiving terminal, display control signal outfan, load control signal receiving terminal, and power input is connected with power module；Push button signalling receiving terminal is connected with keystroke interface module；Display control signal outfan is connected with display communication module；Load control signal outfan drives module to electrically connect with load.The present invention solves the problem that power panel versatility is low.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a power supply board.
Background
With the formation of continental china as the main production base of home appliances, customers are increasing at home and abroad, and in order to make products more competitive, personalized design is required for different customers. The variety of the electric control board of the household appliances such as the microwave oven, the oven and the like is greatly increased, and at least one electric control board is matched with the corresponding microwave oven with each platform and each function.
For newly developed products, particularly products with new appearances, which need to be developed by customers, although the display screen correspondingly arranged on the electric control board needs to be changed, the changes of electricity and structures are not involved; however, for the power panel on the electric control panel, because there is no borrowable platform, it often needs to spend a lot of time and effort to redevelop the design, the universality of the power panel is low, and the development efficiency of enterprises is reduced.
Disclosure of Invention
The invention mainly aims to provide a power panel, and aims to solve the problem of low universality of the power panel.
In order to achieve the above object, the present invention provides a power panel, which includes a main control circuit, a power module, a key interface module for connecting the main control circuit and a key board, a display communication module for communicating between the main control circuit and a display module, and a load driving module for controlling a load by the main control circuit; the main control circuit comprises a power input end, a key signal receiving end, a display control signal output end and a load control signal receiving end, wherein the power input end is connected with the power module; the key signal receiving end is connected with the key interface module; the display control signal output end is connected with the display communication module; and the load control signal output end is electrically connected with the load driving module.
Preferably, the main control circuit comprises a main control chip and a decoupling capacitor; the main control chip comprises a power supply pin, a grounding pin, a reset pin, a key control pin, a plurality of key input pins, a plurality of display control pins and a plurality of load control pins;
the key interface module comprises a plurality of key signal output ends and a key signal control end; the load driving module comprises a plurality of driven ends; the display communication module comprises a plurality of display driving ends; the key control foot is connected with the key signal control end; the plurality of key input pins are connected with the plurality of key signal output ends of the key interface module in a one-to-one correspondence manner; the load control pins are connected with the driven ends of the load driving modules in a one-to-one correspondence manner; the display control pins are connected with the display controlled ends of the display communication module in a one-to-one correspondence manner;
the grounding pin of the main control chip is grounded; the reset pin of the main control chip is grounded through the decoupling capacitor; and the power pin of the main control chip is the power input end of the main control circuit.
Preferably, the power module comprises an input rectifying and filtering unit, an output rectifying and filtering unit and a transformer unit; wherein,
the input end of the input rectifying and filtering unit is connected with an alternating current power supply through a protection resistor, and the output end of the input rectifying and filtering unit is connected with the input end of the transformer unit; the first output end of the transformer unit is connected with the first input end of the output rectifying and filtering unit, and the second output end of the transformer unit is connected with the second input end of the output rectifying and filtering unit; the first output end of the output rectifying and filtering unit is a first power supply output end, and the second output end of the output rectifying and filtering unit is a second power supply output end.
Preferably, the key interface module includes a first triode, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a first connector having a plurality of terminals, a plurality of resistors respectively connected in series between the key signal output terminal and each terminal of the first connector, a switch circuit, a fifty-first capacitor, and a fifty-second capacitor; a base electrode of the first triode is a key signal control end of the key interface module, an emitting electrode of the first triode is interconnected with the first power output end, a first end of the twenty-first capacitor and a first end of the twenty-third resistor, and a collector electrode of the first triode is interconnected with a first end of the twenty-first resistor and a first end of the twenty-second resistor; a second end of the twenty-first resistor, a second end of the twenty-second resistor and a second end of the twenty-third resistor are respectively and correspondingly connected with the terminal of the first connector; the fifty-first capacitor, the twenty-second capacitor and the twenty-third capacitor are respectively and correspondingly connected between each key signal output end and the ground; a second end of the twenty-sixth resistor is connected with the first power supply output end; the first end of the twenty-sixth resistor and the first end of the twenty-seventh resistor are respectively and correspondingly connected with the wiring ends of the two first connectors; and the second end of the twenty-sixth resistor and the second end of the twenty-seventh resistor are respectively connected with the first power output end.
Preferably, the display communication module includes a second triode, a thirty-third resistor, a thirty-fourth resistor, a thirty-first capacitor, a thirty-second capacitor, a thirty-third capacitor and a second connector; the second connection comprises a first display terminal, a second display terminal, a third display terminal and a fourth display terminal; a first terminal of the thirty-third resistor is the first display controlled terminal and is interconnected with the first terminal of the thirty-second capacitor and the first power output terminal, and a second terminal of the thirty-third resistor is connected with the third display terminal; a second end of the thirteenth capacitor is grounded; the first end of the thirty-fourth resistor is the second display controlled end, and the second end of the thirty-fourth resistor is connected with the fourth display terminal; a first terminal of the thirty-third capacitor is interconnected with the first power supply output terminal and the first display terminal; a second terminal of the thirty-third capacitor is grounded and connected to the second display terminal; and a first end of the thirty-first capacitor is connected with the first power output end, and a second end of the thirty-third capacitor is grounded.
Preferably, the load driving module includes a forty-second resistor, a first relay, a second relay, a third relay, a fourth relay, a first load socket for plugging a first load, and a buzzer, and the first relay includes a first coil; the second relay comprises a second coil; the third relay comprises a third coil; the fourth relay includes a fourth coil; wherein the first end of the first coil is interconnected with the first end of the second coil, the first end of the third coil, the first end of the fourth coil, and the second power supply output terminal; the second end of the first coil is connected with the twelfth pin of the load driving chip; the second end of the second coil is connected with an eleventh pin of the load driving chip; a second end of the third coil is connected with a thirteenth pin of the load driving chip; a second end of the fourth coil is connected with a fourteenth pin of the load driving chip; the first end of the first load socket is connected with the first pin of the load driving chip, and the second end of the first load socket is grounded; the first end of the buzzer is connected with the output end of the second power supply, and the second end of the buzzer is connected with the buzzer driving pin of the load driving chip.
Preferably, the load driving module further includes a second driving circuit for driving a second load, the second driving circuit includes a fifth triode, a sixth triode, a fifth relay, a forty-third resistor, a forty-first voltage regulator tube and a forty-second voltage regulator tube, the fifth relay includes a fifth coil, a base of the fifth triode is connected with a fifteenth pin of the main control chip, a collector of the fifth triode is interconnected with an anode of the forty-first voltage regulator tube and a first end of the fifth coil, and an emitter of the fifth triode is connected with an anode of the forty-second voltage regulator tube; the cathode of the forty-second voltage regulator tube is connected with the first end of the first load socket; the cathode of the forty-first voltage regulator tube is interconnected with the second end of the fifth coil and the collector of the sixth triode; and the base electrode of the sixth triode is connected with the twelfth pin of the load driving chip through the forty-third resistor, and the emitter electrode of the sixth triode is connected with the second power output end.
Preferably, the power panel further comprises an inverter driving and communication module, the inverter driving and communication module comprises a third triode, a seventy-first rectifier tube, a seventy-second rectifier tube, a seventy-first capacitor, a seventy-second resistor, a seventy-third resistor, a seventy-fourth resistor, a seventy-fifth resistor, a seventy-first inductor and a third connector for realizing communication between the inverter and the main control circuit, the third connector comprises a feedback signal output end, a control signal input end and a grounding end, the feedback signal output end is connected with the first end of the seventy-first resistor, a second end of the seventy-first resistor is interconnected with a first end of the seventy-second resistor, a first end of the seventy-first capacitor, an anode of the seventy-first voltage regulator tube, a cathode of the seventy-second voltage regulator tube and a first end of the seventy-third resistor; a second end of the seventy-third resistor is interconnected with a first end of the seventy-second capacitor and a twenty-first pin of the main control chip; a second end of the seventy-second resistor is interconnected with a second end of the seventy-first capacitor, an anode of the seventy-second voltage regulator tube and a second end of the seventy-second capacitor, and is grounded; the cathode of the seventy-first voltage-regulator tube is connected with the output end of the first power supply; the grounding end is grounded through the third inductor; a base electrode of the third triode is connected with a first pin of the main control chip, a collector electrode of the third triode is connected with the first power supply output, and an emitting electrode of the third triode is connected with the control signal input end through the seventy-fourth resistor; the control signal input end is also grounded through the seventy-fifth resistor.
Preferably, the power panel further comprises a temperature sensing module, the temperature sensing module comprises a fourth triode, an eighty-first capacitor, an eighty-second capacitor, an eighty-first resistor, an eighty-second resistor, an eighty-third resistor and a fourth connector, and the temperature sensing module further comprises a temperature signal input end and a temperature control signal output end; the fourth connector comprises a temperature signal feedback end; a base electrode of the fourth triode is the temperature control signal output end and is connected with an eighteenth pin of the main control chip, an emitting electrode of the fourth triode is interconnected with the first power output end and the first end of the eighty-three resistor, and a collector electrode of the fourth triode is interconnected with the first end of the eighty-two resistor, the second end of the eighty-three resistor, the first end of the eighty-two capacitor and the temperature signal feedback end through the eighty-two resistor; a second end of the eighty-first resistor is the temperature signal input end and is grounded through the eighty-first capacitor; a second end of the eighty-two capacitor is grounded; the ground terminal of the fourth connector is grounded.
Preferably, the main control circuit further comprises a zero-crossing point detection circuit, the zero-crossing point detection circuit comprises a current-limiting resistor, a second optocoupler, a ninety first resistor, a ninety second resistor and a ninety first capacitor, a first end of the current-limiting resistor is connected with a live wire of the alternating current power supply, and a second end of the current-limiting resistor is connected with an anode of the second optical coupler; the cathode of the second optical coupling is grounded, the collector of the second optical coupling is interconnected with the first end of the ninety first resistor and the first end of the ninety second resistor, and the emitter of the second optical coupling is grounded; a second end of the ninety first resistor is connected to the first power supply output; a second end of the ninety second resistor is a feedback end of a zero-crossing point detection circuit and is interconnected with a first end of the ninety first capacitor and a sixth pin of the main control chip; and the second end of the ninety first capacitor is grounded.
The power panel is provided with the main control circuit, the power input end of the main control circuit starts to work after obtaining the working voltage from the first power output end of the power module, when the key signal receiving end of the main control circuit receives the key signal output by the external key panel through the key interface module, the load control signal output end of the main control circuit outputs a corresponding control signal to control the load driving module to drive the corresponding load to work, and meanwhile, the display control signal output end of the main control circuit outputs a corresponding display control signal to control the display communication module to drive the display screen connected with the display control module to work. The invention improves the universality and the convenience of the power panel, thereby improving the development efficiency of enterprises.
Drawings
FIG. 1 is a functional block diagram of a power strip according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a main control circuit in the power board shown in FIG. 1;
FIG. 3 is a schematic circuit diagram of a power module of the power board shown in FIG. 1;
FIG. 4 is a schematic circuit diagram of a key interface module of the power board shown in FIG. 1;
fig. 5 is a schematic circuit diagram of a load driving module of the power board shown in fig. 1 according to an embodiment;
FIG. 6 is a schematic circuit diagram of a display communication module of the power panel shown in FIG. 1;
FIG. 7 is a schematic circuit diagram of an inverter driving and communication module of the power panel shown in FIG. 1;
FIG. 8 is a schematic circuit diagram of a temperature sensing module of the power board shown in FIG. 1;
fig. 9 is a schematic circuit diagram of another embodiment of the load driving module shown in fig. 1.
The reference numbers illustrate:
the implementation of the objects, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings in conjunction with the embodiments.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a power panel.
Referring to fig. 1, the power panel includes a main control circuit 10, a power module 20, a key interface module 30 for connecting the main control circuit 10 and a keypad, a display communication module 50 for implementing communication between the main control circuit 10 and a display module, and a load driving module 40 for implementing the main control circuit 10 to control a load, where the main control circuit 10 includes a power input terminal, a key signal receiving terminal, a display control signal output terminal, and a load control signal receiving terminal, and the power input terminal is connected to the power module 20; the key signal receiving end is connected with the key interface module 30; the display control signal output end is connected with the display communication module 50; the load control signal output end is electrically connected with the load driving module 40.
Specifically, when the power panel is powered on, the power input terminal of the main control circuit 10 of the power panel starts to operate after obtaining the operating voltage from the first power output terminal VCC1 of the power module 20, when the key signal receiving terminal of the main control circuit 10 receives the key signal output by the external key panel through the key interface module 30, the load control signal output terminal of the main control circuit 10 outputs the corresponding control signal to control the load driving module 40 to drive the corresponding load to operate, and meanwhile, the display control signal output terminal of the main control circuit 10 outputs the corresponding display control signal to control the display communication module 50 to drive the display screen connected thereto to operate.
The power panel and the display screen are designed separately, and the power module on the power panel can provide a driving power supply for the display screen, and the main control circuit and the display communication module can provide a display content control signal for the display screen. Therefore, the power panel provided by the invention can be matched with display screens with various specification parameters, and has strong universality. Therefore, when a designer develops and designs a new product, only the display screen needs to be replaced, the operation is very convenient, and the enterprise development efficiency is improved.
Referring to fig. 1 and 2, in a preferred embodiment, the main control circuit 10 includes a main control chip IC1 and a decoupling capacitor Co; the main control chip IC1 comprises a power supply pin VCC, a grounding pin VSS, a reset pin RET, a key control pin, a plurality of key input pins, a plurality of display control pins and a plurality of load control pins;
the key interface module 30 includes a plurality of key signal output terminals and a key signal control terminal; the load driving module 40 includes a plurality of driven ends; the display communication module 50 comprises a plurality of display driving ends; the key control foot is connected with the key signal control end BG; the plurality of key input pins are connected with the plurality of key signal output ends of the key interface module 30 in a one-to-one correspondence manner; the load control pins are connected with the driven ends of the load driving modules 40 in a one-to-one correspondence manner; the display control pins are connected with the display controlled ends of the display communication module 50 in a one-to-one correspondence manner;
the grounding pin of the main control chip IC1 is grounded; the reset pin of the main control chip IC1 is grounded through the decoupling capacitor; the power pin of the main control chip IC1 is the power input terminal of the main control circuit 10.
Specifically, the load driving module 40 includes a load driving chip IC2, a forty-first capacitor C41 and a forty-first resistor R41; in this embodiment, the plurality of KEY signal output ends of the KEY interface module 30 may be a first KEY signal output end KEY1, a second KEY signal output end KEY2, a third KEY signal output end KEY3, a fourth KEY signal output end KEY4, a fifth KEY signal output end KEY5, a sixth KEY signal output end KEY6, a seventh KEY signal output end SWL, and an eighth KEY signal output end SWR. The display slave terminals of the display communication module 50 can be a first display slave terminal S _ CLK/TXD, a second display slave terminal S _ DIN/RXD, a third display slave terminal STB1 and a fourth display slave terminal STB2/BG 1; the power module 20 has a first power output terminal VCC1 and a second power output terminal VCC 2;
the third pin T3 of the master control chip IC1 is connected with the sixth pin B1 of the load driving chip IC 2; a fourth pin T4 of the master chip IC1 is connected with a fifth pin B5 of the load driving chip IC 2; a fifth pin T5 of the master chip IC1 is connected with a fourth pin B6 of the load driving chip IC 2; the grounding pin of the main control chip IC1 is grounded; the reset pin of the main control chip IC1 is grounded through the decoupling capacitor Co; an eleventh pin T11 of the master control chip IC1 is connected with a seventh pin BUZ of the load driving chip IC 2; a power pin VDD of the main control chip IC1 is a power input terminal of the main control circuit 10 and is connected to the first power output terminal VCC 1; an empty pin NC of the main control chip IC1 is empty; a fourteenth pin T14 of the master chip IC1 is sequentially connected to a seventh pin CAP1 of the load driver chip IC2 through the forty-first resistor R41 and the forty-first capacitor C41; a fifteenth pin T15 of the master control chip IC1 is connected with a second pin DOOR of the load driving chip IC 2; a twenty-third pin T23 of the main control chip IC1 is connected with the first KEY signal output end KEY 1; a twenty-fourth pin T24 of the main control chip IC1 is connected with the second KEY signal output end KEY 2; a twenty-fifth pin T25 of the main control chip IC1 is connected with the third KEY signal output end KEY 3; a twenty-sixth pin T26 of the main control chip IC1 is connected with the fourth KEY signal output end KEY 4; a thirty-first pin T31 of the main control chip IC1 is connected with the fifth KEY signal output end KEY 5; a thirty-second pin T32 of the main control chip IC1 is connected with the sixth KEY signal output end KEY 6; a thirty-third pin T33 of the main control chip IC1 is connected with the seventh key signal output end SWR; a thirty-fourth pin T34 of the main control chip IC1 is connected with the eighth key signal output end SWL; a thirty-fifth pin T35 of the main control chip IC1 is connected with the second display controlled terminal S _ DIN/RXD; the thirty-sixth pin T36 of the master chip IC1 is connected with the first display controlled terminal S _ CLK/TXD; the thirty-seventh pin T37 of the main control chip IC1 is connected with the third display controlled terminal STB 1; the thirty-eighth pin T38 of the main control chip IC1 is connected with the fourth display controlled terminal STB2/BG 1.
When the power panel is powered on, the power pin VDD of the main control chip IC1 obtains a working voltage from the first power output terminal VCC1 of the power module 20 and starts up the power pin VDD, when the corresponding pin on the main control chip IC1 receives a key signal output by the external key panel via the terminal of the key interface module 30, the main control chip IC1 outputs a corresponding control signal to control the load driving chip IC2 to work, so as to drive the corresponding load to work, and at the same time, the main control chip IC1 also outputs a display control signal to control the display communication module to drive the external display screen to work.
Further, the main control chip IC1 further includes a plurality of pins for connecting with the humidity sensor module, the weight sensor module, the infrared sensor module, and the distance sensor module, so that resources of the power board can be fully utilized to realize a plurality of functions, which is not limited herein.
Referring to fig. 2, in a preferred embodiment, the main control circuit 10 further includes a zero crossing point detection circuit 11, the zero crossing point detection circuit 11 includes a current limiting resistor Ry, a second optocoupler U2, a ninety first resistor R91, a ninety second resistor R92 and a ninety first capacitor C91, a first end of the current limiting resistor Ry is connected to the live line LN of the ac power supply, and a second end of the current limiting resistor Ry is connected to the anode of the second optocoupler U2; the cathode of the second photo-coupling U2 is grounded, the collector of the second photo-coupling U2 is interconnected with the first end of the ninety first resistor R91 and the first end of the ninety second resistor R92, and the emitter of the second photo-coupling U2 is grounded; a second end of the ninety first resistor R91 is connected to the first power output terminal VCC 1; a second end of the ninety second resistor R92 is a feedback end of the zero-crossing point detection circuit 11, and is interconnected with a first end of the ninety first capacitor C91 and a sixth pin T6 of the main control chip IC 1; a second terminal of the ninety first capacitor C91 is connected to ground.
It is understood that the zero crossing point detection circuit 11 provides an interrupt trigger signal to the main control chip IC1, and also provides a voltage reference to the main control chip IC1, where the standard starting point is zero voltage.
Alternating current power supply voltage signals are rectified by the first rectifying tube D1 and the second rectifying tube D2, then are limited by the current limiting resistor Ry and then are output to the cathode of the second optocoupler U2 to trigger the second optocoupler U2 to work, and the voltage signals are filtered by the ninety-first capacitor C91 and then are output to the sixth pin T6 of the main control chip IC1, so that the level of the sixth pin T6 is changed.
It can be understood that the main control circuit 10 further includes a crystal oscillator module 12 for providing working signal pulses to the main control chip IC1 and a burning module 13 for downloading a driver to the main control chip IC 1.
Referring to fig. 3, in a preferred embodiment, the power module 20 includes an input rectifying and filtering unit 21, an output rectifying and filtering unit 23, and a transformer unit 22; wherein,
the input end of the input rectifying and filtering unit 21 is connected with an alternating current power supply through a protection resistor Rx, and the output end of the input rectifying and filtering unit 21 is connected with the input end of the transformer unit 22; a first output end of the transformer unit 22 is connected to a first input end of the output rectifying and filtering unit 23, and a second output end of the transformer unit 23 is connected to a second input end of the output rectifying and filtering unit 23; the first output end of the output rectifying and filtering unit 23 is a first power output end, and the second output end of the output rectifying and filtering unit 23 is a second power output end.
The input rectifying and filtering unit 21 specifically includes a first rectifying tube D1, a second rectifying tube D2, a third rectifying tube D3, a fourth rectifying tube D4, a first capacitor C1, a second capacitor C2, and a first inductor L1; the transformer unit 22 specifically comprises a transformer T0, a power controller IC3, a fifth rectifier tube D5, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first optical coupler U1, a voltage regulator tube ZD1, a third capacitor C3 and a fourth capacitor C4; the output rectifying and filtering unit 23 specifically includes a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a sixth resistor R6, a seventh resistor R7, a second inductor L2, and a sixth rectifier tube D6, and the transformer T0 includes a primary winding and a secondary winding; the power controller IC3 includes a source pin S, a feedback pin FB, a bypass pin BP, and a drain pin D.
Specifically, the common end of the anode of the first rectifier tube D1 and the cathode of the second rectifier tube D2 is connected to the zero line N of the ac power supply through the protection resistor Rx; the common end of the anode of the third rectifier tube D3 and the cathode of the fourth rectifier tube D4 is connected with the live wire L of the alternating current power supply; a cathode of the first rectifier tube D1 is interconnected with a cathode of the third rectifier tube D3, a first end of the first capacitor C1, a first end of the second capacitor C2, a first end of the third capacitor C3, a first end of a first resistor R1 and a first end of the primary winding; the anode of the second rectifier tube D2 is grounded and interconnected with the anode of the fourth rectifier tube D4, the second end of the first resistor R1 and the first end of the first inductor L1; a second terminal of the first inductor L1 is interconnected with a second terminal of the second capacitor C2, a source pin S, and a first terminal of a fourth capacitor C4; the drain pin D is connected with the anode of the fifth rectifying tube D5 and the second end of the primary winding; a cathode of the fifth rectifier tube D5 is interconnected with a second terminal of the third capacitor C3 and a first terminal of the second resistor R2 via the third resistor R3, and a second terminal of the second resistor R2 is connected with a second terminal of the first resistor R1; the feedback pin FB is connected with an emitter of the first optical coupler U1; the bypass pin BP is interconnected with a second end of the fourth capacitor C4 and a collector of the first optocoupler U1; the anode of the first optocoupler U1 is interconnected with the first end of a fourth resistor R4 and the anode of the voltage regulator tube ZD1, and the cathode of the first optocoupler U1 is interconnected with the cathode of the sixth voltage regulator tube ZD1, the first end of the second inductor L2 and the first end of the fifth resistor R5 through the fifth capacitor C5; a second terminal of the fourth resistor R4 is interconnected via the seventh capacitor C7 with a cathode of the seventh regulator tube ZD1, the eighth capacitor C8 and a first terminal of the sixth resistor R6; the cathode of the seventh voltage regulator tube ZD1 is the second power output terminal VCC 2; a second end of the fifth resistor R5 is connected with the cathode of the voltage regulator tube ZD 1; the anode of the sixth rectifier tube D6 is connected with the second end of the secondary winding; a second end of the second inductor L2 is the first power output terminal VCC1, and is connected to a power input terminal of the main control circuit 10; the second end of the second inductor L2 is also grounded via the sixth capacitor C6; a second end of the eighth capacitor C8 is interconnected with an anode of the seventh rectifier D7 and a first end of the secondary winding through the seventh resistor R7; the third end of the secondary winding is grounded and connected with the second end of the sixth resistor R6.
In this embodiment, the first power output terminal VCC1 outputs +5V voltage, and the second power output terminal VCC2 outputs +12V voltage. The voltage output by the first power output terminal VCC1 and/or the second power output terminal VCC2 may also be other values, as needed, and is not limited herein.
Specifically, the ac power is rectified by the rectifiers D1 to D4, filtered by the high-capacity capacitors C1 and C2, and then outputted to the primary winding of the transformer T0, and after being processed by the transformer T0, rectified and filtered by the rectifying and filtering circuit composed of the sixth rectifier D6, the seventh rectifier D7, the fifth capacitor C5, and the seventh capacitor C7, and after being controlled by the power controller IC3, the ac power outputs the corresponding power voltage to the main control circuit 10 and other modules.
Wherein, the protection resistor Rx is used for preventing surge. The first capacitor C1, the second capacitor C2, and the first inductor L1 are pi-type filters for attenuating differential mode noise.
By adopting the integrated chip power supply controller IC3 and a small number of peripheral elements, the power supply module 20 can be automatically restarted when a circuit is in a short circuit or open loop fault, so that the self-protection function of the power supply module 20 is achieved, the development cost of the power supply board is greatly reduced due to the small number of peripheral elements, and the working efficiency is high.
In another preferred embodiment, the voltage regulator tube ZD1 can be replaced by a controllable precision voltage regulator.
Referring to fig. 4, in a preferred embodiment, the key interface module 30 includes a first transistor Q1, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-first capacitor C21, a twenty-second capacitor C22, a twenty-third capacitor C23, a first connector CN1 having a plurality of terminals, a plurality of resistors respectively connected in series between the key signal output terminal and each terminal of the first connector, a fifty-first capacitor C51, and a fifty-second capacitor C52.
Specifically, the first connector CN1 includes a first terminal J1, a second terminal J2, a third terminal J3, a fourth terminal J4, a fifth terminal J5, a sixth terminal J6, a seventh terminal J7, an eighth terminal J8, a ninth terminal J9, a tenth terminal J10; a plurality of resistors, specifically, a fifty-first resistor R51, a fifty-second resistor R52, a fifty-third resistor R53, a fifty-fourth resistor R54, a fifty-fifth resistor R55, a fifty-sixth resistor R56, a fifty-seventh resistor R57, a fifty-eighth resistor R58, a fifty-ninth resistor R59, and a base of the first transistor Q1 are all connected in series between the key signal output terminal and each terminal of the first connector, and an emitter of the first transistor Q1 is connected to the first power output terminal VCC1, the first end of the twenty-first capacitor C21 and the first end of the twenty-third resistor R23, and a collector of the first transistor Q1 is connected to the first end of the twenty-first resistor R21 and the first end of the twenty-second resistor R22; a second end of the twenty-first resistor R21 is interconnected with the sixth terminal J6 and a first end of the fifty-fourth resistor R54; a second end of the twenty-second resistor R22 is interconnected with the first terminal J1 and a second end of the twenty-third resistor R23; a second end of the twenty-first resistor R21 interconnected with the third terminal J3, a first end of the fifty-second resistor R52, and a first end of the fifty-eighth resistor R58; a second end of the fifty-second resistor R52 is the second KEY signal output KEY2 and is grounded via the fifty-first capacitor C51; a second end of the fifty-fifth resistor R55 is the fifth KEY signal output KEY 5; a second end of the fifty-eighth resistor R58 is grounded; a first terminal of the fifty-first resistor R51 is interconnected with a first terminal of the fifty-seventh resistor R57 and the second terminal J2, a second terminal of the fifty-first resistor R51 is the first KEY signal output KEY1 and is grounded via the fifty-second capacitor C52; a second end of the fifty-seventh resistor R57 is grounded; a first terminal of the fifty-third resistor R53 is interconnected with a first terminal of the fifty-ninth resistor R59 and the fourth terminal J4, and a second terminal of the fifty-third resistor R53 is the third KEY signal output KEY 3; a second end of the fifty-ninth resistor R59 is grounded; a first end of the fifty-fourth resistor R54 is connected to the fifth terminal J5, and a second end of the fifty-fourth resistor R54 is the fourth KEY signal output KEY 4; a first end of the fifty-six resistor is connected to the seventh terminal J7, and a second end of the fifty-six resistor is the sixth KEY signal output end KEY 6; a first end of the twenty-fourth resistor R24 interconnected with a first end of the twenty-sixth resistor R26 and the seventh terminal J7; a second end of the twenty-fourth resistor R24 is the seventh key signal output terminal SWL, and is grounded via the twenty-second capacitor C22; a second end of the twenty-sixth resistor R26 is connected to the first power output terminal VCC 1; a first terminal of the twenty-fifth resistor R25 interconnected with a first terminal of the twenty-seventh resistor R27 and the seventh terminal J7; a second end of the twenty-fifth resistor R25 is the eighth key signal output terminal SWR and is grounded via the twenty-third capacitor C23; a second end of the twenty-seventh resistor R27 is connected to the first power output terminal VCC 1.
In a preferred embodiment, the switch circuit 31 is a touch switch circuit 31, the touch switch is turned on by lightly pressing a switch button in use, and turned off when releasing the hand, the internal structure of the device is elastically driven by the stress of the metal elastic sheet to realize the on-off, and it should be noted that the pin connected with the key signal output end on the main control chip IC1 is the key scanning port, wherein the fifty-seventh resistor R57, the fifty-eighth resistor R58 and the fifty-ninth resistor R59 are pull-down resistors, the key scan port needs to output high level, in another embodiment, the fifty-seventh resistor R57, the fifty-eighth resistor R58 and the fifty-ninth resistor R59 may also be connected to the power supply, namely, a pull-up mode is adopted, the key scanning port needs to output a high level, the fifty-first resistor R51 and the fifty-second resistor R52 are pull-up resistors, and the fifty-first capacitor C51 and the fifty-second capacitor C52 are used for filtering noise waves in the key input signal.
In a preferred embodiment, the switch circuit 31 can be further implemented by a touch KEY switch circuit 31 'connected to the touch chip, specifically, the touch KEY switch circuit 31' includes a sixty-first resistor R61, a sixty-second resistor R62, a sixty-first capacitor C61 and a sixty-second capacitor C62, a first end of the sixty-first resistor R61 and a first end of the sixty-second resistor R62 are respectively connected to the first power output VCC1, and a second end of the sixty-first resistor R61 is connected to a first end of the sixty-first capacitor C61 and the third KEY signal output KEY 3; a second end of the sixty-second resistor R62 and a first end of the sixty-second capacitor C62 are interconnected with the third KEY signal output KEY 3; a second terminal of the sixty-second capacitor C62 is connected to a second terminal of the sixty-first capacitor C61 and to ground. The twenty-third resistor R23 and the twenty-first capacitor C21 are used for being connected with a power pin VDD of the touch chip and providing power for the touch chip, and when a backlight signal BG is input to the base electrode of the first triode Q1, the backlight signal BG is amplified by the first triode Q1 and then is output to a backlight source of the touch chip through the sixth terminal J6.
Referring to fig. 6, in a preferred embodiment, the display communication module 50 includes a second transistor Q2, a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-first capacitor C31, a thirty-second capacitor C32, a thirty-third capacitor C33, and a second connector CN 2; the second connector includes a first display terminal S1, a second display terminal S2, a third display terminal S3, a fourth display terminal S4; a first terminal of the thirty-third resistor R33 is the first display controlled terminal S _ CLK/TXD and is interconnected with the first terminal of the thirty-second capacitor C32 and the first power output terminal VCC1, and a second terminal of the thirty-third resistor R33 is connected with the third display terminal S3; a second end of the thirteenth capacitor is grounded; a first terminal of the thirty-fourth resistor R34 is the second display controlled terminal S _ DIN/RXD, and a second terminal of the thirty-fourth resistor R34 is connected with the fourth display terminal S4; a first terminal of the thirty-third capacitor C33 is interconnected with the first power output VCC1 and the first display terminal S1; a second terminal of the thirty-third capacitor C33 is connected to ground and to the second display terminal S2; a first end of the thirty-first capacitor C31 is connected to the first power output terminal VCC1, and a second end of the thirty-third capacitor C33 is grounded.
In this embodiment, the second transistor Q2, the thirty-third resistor R33, the thirty-fourth resistor R34, the thirty-first capacitor C31, the thirty-second capacitor C32, the thirty-third capacitor C33, and the second connector CN2 form a display communication scheme of the UART. In another preferred embodiment, an LCD display communication scheme including a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a thirty-sixth resistor R36, a thirty-third capacitor C33 and a second transistor Q2, or an LED display communication scheme including a thirty-eleventh resistor R31, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a thirty-sixth resistor R36, a thirty-third capacitor C33 and a second transistor Q2 may also be used, which is not limited herein. The thirty-first resistor R31 and the thirty-second resistor R32 are pull-up resistors, and the thirty-first capacitor C31 and the thirty-second capacitor C32 are used for filtering. In addition, the second connector CN2 further includes a fifth display terminal S5 and a sixth display terminal S6 for connecting more display driving schemes.
In a preferred embodiment, the load driving module 40 includes a forty-second resistor R42, a first relay ZJ1, a second relay ZJ2, a third relay ZJ3, a fourth relay ZJ4, a first load socket CN5 for plugging a first load, and a buzzer, and the first relay ZJ1 includes a first coil; the second relay ZJ2 includes a second coil; the third relay ZJ3 includes a third coil; the fourth relay ZJ4 includes a fourth coil; wherein the first end of the first coil is interconnected with the first end of the second coil, the first end of the third coil, the first end of the fourth coil, and the second power supply output terminal VCC 2; a second end of the first coil is connected with a twelfth pin C3 of the load driving chip IC 2; the second end of the second coil is connected with an eleventh pin C1 of the load driving chip IC 2; a second end of the third coil is connected with a thirteenth pin C5 of the load driving chip IC 2; a second end of the fourth coil is connected with a fourteenth pin C6 of the load driving chip IC 2; a first end of the first load socket CN5 is connected to the first pin Y of the load driving chip IC2, and a second end of the first load socket CN5 is grounded; the first end of buzzer is connected with second power output VCC2, the second end of buzzer with load drive chip IC 2's buzzer drive foot is connected.
The first relay ZJ1, the second relay ZJ2, the third relay ZJ3, and the fourth relay ZJ4 further include a common terminal and a contact point, respectively, which are correspondingly connected to a load. The load driving chip IC2 preferably adopts MX2018, and a plurality of load drives such as a furnace door control, a relay drive and a buzzer are integrated in the chip, so that the number of components is reduced. The forty-first resistor R41 and the forty-first capacitor C41 are safety control circuits, and when the fourteenth pin T14 of the main control chip IC1 connected with the safety control circuits outputs a pulse signal, the load driving chip IC2 drives the relay to be powered on and switched on, so that the load is driven to work.
In this embodiment, the load may be a lighting lamp, a fan, an oven, a microwave oven, or the like, which is not limited herein.
In the above embodiment, the load driving module 40 further includes a second driving circuit 41 for driving a second load, the second driving circuit 41 includes a fifth transistor Q5, a sixth transistor Q6, a fifth relay ZJ5, a forty-third resistor R43, a forty-first rectifier D41, and a forty-second rectifier D42, the fifth relay ZJ5 includes a fifth coil (not shown), a base of the fifth transistor Q5 is connected to a fifteenth pin T15 of the main control chip IC1, a collector of the fifth transistor Q5 is interconnected with an anode of the forty-first rectifier D41 and a first end of the fifth coil, and an emitter of the fifth transistor Q5 is connected to an anode of the forty-second rectifier D42; a cathode of the forty-second rectifier D42 is connected to the first end of the first load socket CN 5; a cathode of the forty-first rectifier D41 is interconnected with the second end of the fifth coil and a collector of the sixth triode Q6; the base of the sixth triode Q6 is connected to the twelfth pin C1 of the load driver IC2 through the forty-third resistor, and the emitter of the sixth triode Q6 is connected to the second power output terminal VCC 2.
The second load is a hot air heating tube applied to the microwave oven, the fifth triode Q5 and the sixth triode Q6 are used for driving the relays to work, so that the power panel is more compatible, the forty-first diode is used for preventing the current flowing through the fifth relay ZJ5 from being too large to damage the fifth relay ZJ5, and the forty-first rectifier tube D41 is used for realizing the unidirectional transmission of control signals. When the base of the fifth transistor Q5 receives the control signal, the fifth transistor Q5 is turned on, thereby driving the fifth relay ZJ5 to operate.
In the above embodiment, the power board further includes an inverter driving and communication module 60, the inverter driving and communication module 60 includes a third triode Q3, a seventy-first rectifier D71, a seventy-second rectifier D72, a seventy-first capacitor C71, a seventy-second resistor R72, a seventy-third resistor R73, a seventy-fourth resistor R74, a seventy-fifth resistor R75, a seventy-first inductor L71, and a third connector CN3 for implementing communication between the inverter and the main control circuit 10, the third connector CN3 includes a feedback signal output terminal K1, a control signal input terminal K2, and a ground terminal K3, the feedback signal output terminal K1 is connected to a first end of the seventy-first resistor R71, a second end of the seventy-first resistor R71 is connected to a first end of the seventy-second resistor R72, a first end of the seventy-first capacitor C71, and a seventy-first end of the seventy-second rectifier D71, A cathode of the seventy-second rectifier D72 and a first end of the seventy-third resistor R73 are interconnected; a second end of the seventy-third resistor R73 is interconnected with a first end of the seventy-second capacitor C72 and a twenty-first pin of the master chip IC 1; a second terminal of the seventy-second resistor R72 is interconnected with a second terminal of the seventy-first capacitor C71, an anode of the seventy-second rectifier D72, and a second terminal of the seventy-second capacitor C72, and is grounded; the cathode of the seventy-first rectifier tube D71 is connected with the first power output end VCC 1; the ground terminal K3 is grounded through the third inductor L3; a base electrode of the third triode Q3 is connected with a first pin T1 of the main control chip IC1, a collector electrode of the third triode Q3 is connected with the first power output terminal VCC1, and an emitter electrode of the third triode Q3 is connected with the control signal input terminal K2 through the seventy-fourth resistor R74; the control signal input K2 is also connected to ground through the seventy-fifth resistor R75.
It should be noted that, when communicating with the inverter, the mode that the pulse frequency represents the power level is adopted, that is, 1000Hz represents the microwave power of 1000W, when the main control chip IC1 outputs the PWM control signal to the base of the third transistor Q3, the third transistor Q3 is turned on, so that the corresponding flip signal is output through the transistor Q1, and meanwhile, the third transistor Q3 also plays a role of signal isolation, wherein the third inductor L3 is used for preventing the ground wire of the inverter from causing interference to the ground wire of the power board.
An anode current signal IB of a magnetron in the inverter is output through the feedback signal output end K1, is serially connected with a seventy-first resistor R71 and a seventy-second resistor R72 for voltage division, and is filtered by a seventy-first capacitor C71 and a seventy-second capacitor C72 to finally form direct current voltage which is output to a fourteenth pin T14 with an AD port of the main control chip IC1 for conversion, so that the working state of the magnetron is monitored.
Further, the power panel further comprises a temperature sensing module 70, the temperature sensing module 70 comprises a fourth triode Q4, an eighty-first capacitor C81, an eighty-first capacitor C82, an eighty-first resistor R81, an eighty-second resistor R82, an eighty-third resistor R83 and a fourth connector CN4, and the temperature sensing module 70 further comprises a temperature signal input end and a temperature control signal output end; the fourth connector CN4 includes a temperature signal feedback terminal F1; a base of the fourth triode Q4 is the temperature control signal output terminal and is connected to an eighteenth pin of the main control chip IC1, an emitter of the fourth triode Q4 is interconnected with the first power output terminal VCC1 and a first end of the eighty-third resistor R83, and a collector of the fourth triode Q4 is interconnected with a first end of the eighty-first resistor R81, a second end of the eighty-third resistor R83, a first end of the eighty-first capacitor C82 and the temperature signal feedback terminal through the eighty-second resistor R82; a second terminal of the eighty-first resistor R81 is the temperature signal input terminal and is grounded via the eighty-first capacitor C81; a second terminal of the eighty-first capacitor C82 is grounded; the ground terminal GND of the fourth connector CN4 is grounded.
The temperature sensor is preferably a thermistor for feeding back a temperature signal of a detection object, which may be a cavity of a microwave oven, an oven, or the like, and one end of the thermistor is a temperature signal feedback end, and the other end is grounded.
The nineteenth pin T19 of the main control chip IC1 is an AD port, and when the detected temperature is low, the resistance of the thermistor is large, the thermistor is connected in series with the eighty-third resistor R83 and then divides the voltage, and the detected temperature signal is output through the temperature signal output end to the nineteenth pin T19 of the main control chip IC1 for conversion, so that the temperature detection of the detection object is completed.
When the detected temperature reaches a rising threshold value, at the moment, the resistance value of the thermistor changes slightly, so that the temperature control precision is reduced, the main control chip IC1 outputs a temperature control output signal to the base electrode of the fourth triode Q4 through the eighteenth pin T18, the fourth triode Q4 is triggered to be conducted, the eighty-second resistor R82 and the eighty-third resistor R83 are connected in parallel and then connected in series with the thermistor, the voltage division value of the thermistor is improved, and the control precision at high temperature is further improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A power panel is characterized by comprising a main control circuit, a power module, a key interface module, a display communication module and a load driving module, wherein the key interface module is used for connecting the main control circuit and a key panel; the main control circuit comprises a power input end, a key signal receiving end, a display control signal output end and a load control signal receiving end, wherein the power input end is connected with the power module; the key signal receiving end is connected with the key interface module; the display control signal output end is connected with the display communication module; and the load control signal output end is electrically connected with the load driving module.
2. The power strip of claim 1, wherein said master control circuit comprises a master control chip and a decoupling capacitor; the main control chip comprises a power supply pin, a grounding pin, a reset pin, a key control pin, a plurality of key input pins, a plurality of display control pins and a plurality of load control pins;
the key interface module comprises a plurality of key signal output ends and a key signal control end; the load driving module comprises a plurality of driven ends; the display communication module comprises a plurality of display driving ends; the key control foot is connected with the key signal control end; the plurality of key input pins are connected with the plurality of key signal output ends of the key interface module in a one-to-one correspondence manner; the load control pins are connected with the driven ends of the load driving modules in a one-to-one correspondence manner; the display control pins are connected with the display controlled ends of the display communication module in a one-to-one correspondence manner;
the grounding pin of the main control chip is grounded; the reset pin of the main control chip is grounded through the decoupling capacitor; and the power pin of the main control chip is the power input end of the main control circuit.
3. The power strip of claim 2, wherein said power module comprises an input rectifying and filtering unit, an output rectifying and filtering unit, and a transformer unit; wherein,
the input end of the input rectifying and filtering unit is connected with an alternating current power supply through a protection resistor, and the output end of the input rectifying and filtering unit is connected with the input end of the transformer unit; the first output end of the transformer unit is connected with the first input end of the output rectifying and filtering unit, and the second output end of the transformer unit is connected with the second input end of the output rectifying and filtering unit; the first output end of the output rectifying and filtering unit is a first power supply output end, and the second output end of the output rectifying and filtering unit is a second power supply output end.
4. The power strip of claim 2, wherein said key interface module comprises a first transistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a first connector having a plurality of terminals, a plurality of resistors, a switching circuit, a fifty-first capacitor and a fifty-two capacitor respectively connected in series between said key signal output and each terminal of said first connector; a base electrode of the first triode is a key signal control end of the key interface module, an emitting electrode of the first triode is interconnected with the first power output end, a first end of the twenty-first capacitor and a first end of the twenty-third resistor, and a collector electrode of the first triode is interconnected with a first end of the twenty-first resistor and a first end of the twenty-second resistor; a second end of the twenty-first resistor, a second end of the twenty-second resistor and a second end of the twenty-third resistor are respectively and correspondingly connected with the terminal of the first connector; the fifty-first capacitor, the twenty-second capacitor and the twenty-third capacitor are respectively and correspondingly connected between each key signal output end and the ground; a second end of the twenty-sixth resistor is connected with the first power supply output end; the first end of the twenty-sixth resistor and the first end of the twenty-seventh resistor are respectively and correspondingly connected with the wiring ends of the two first connectors; and the second end of the twenty-sixth resistor and the second end of the twenty-seventh resistor are respectively connected with the first power output end.
5. The power strip of claim 2, wherein the display communication module comprises a second transistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-eleventh capacitor, a thirty-second capacitor, a thirty-third capacitor, and a second connector; the second connection comprises a first display terminal, a second display terminal, a third display terminal and a fourth display terminal; a first terminal of the thirty-third resistor is the first display controlled terminal and is interconnected with the first terminal of the thirty-second capacitor and the first power output terminal, and a second terminal of the thirty-third resistor is connected with the third display terminal; a second end of the thirteenth capacitor is grounded; the first end of the thirty-fourth resistor is the second display controlled end, and the second end of the thirty-fourth resistor is connected with the fourth display terminal; a first terminal of the thirty-third capacitor is interconnected with the first power supply output terminal and the first display terminal; a second terminal of the thirty-third capacitor is grounded and connected to the second display terminal; and a first end of the thirty-first capacitor is connected with the first power output end, and a second end of the thirty-third capacitor is grounded.
6. The power strip of claim 2, wherein said load driving module comprises a forty-second resistor, a first relay, a second relay, a third relay, a fourth relay, a first load socket for plugging a first load, and a buzzer, said first relay comprising a first coil; the second relay comprises a second coil; the third relay comprises a third coil; the fourth relay includes a fourth coil; wherein the first end of the first coil is interconnected with the first end of the second coil, the first end of the third coil, the first end of the fourth coil, and the second power supply output terminal; the second end of the first coil is connected with the twelfth pin of the load driving chip; the second end of the second coil is connected with an eleventh pin of the load driving chip; a second end of the third coil is connected with a thirteenth pin of the load driving chip; a second end of the fourth coil is connected with a fourteenth pin of the load driving chip; the first end of the first load socket is connected with the first pin of the load driving chip, and the second end of the first load socket is grounded; the first end of the buzzer is connected with the output end of the second power supply, and the second end of the buzzer is connected with the buzzer driving pin of the load driving chip.
7. The power panel according to claim 6, wherein the load driving module further comprises a second driving circuit for driving a second load, the second driving circuit comprises a fifth triode, a sixth triode, a fifth relay, a forty-third resistor, a forty-first voltage regulator and a forty-second voltage regulator, the fifth relay comprises a fifth coil, a base of the fifth triode is connected with a fifteenth pin of the main control chip, a collector of the fifth triode is interconnected with an anode of the forty-first voltage regulator and a first end of the fifth coil, and an emitter of the fifth triode is connected with an anode of the forty-second voltage regulator; the cathode of the forty-second voltage regulator tube is connected with the first end of the first load socket; the cathode of the forty-first voltage regulator tube is interconnected with the second end of the fifth coil and the collector of the sixth triode; and the base electrode of the sixth triode is connected with the twelfth pin of the load driving chip through the forty-third resistor, and the emitter electrode of the sixth triode is connected with the second power output end.
8. The power strip of claim 2, further comprising an inverter drive and communications module, the inverter driving and communication module comprises a third triode, a seventy-first rectifier tube, a seventy-second rectifier tube, a seventy-first capacitor, a seventy-second resistor, a seventy-third resistor, a seventy-fourth resistor, a seventy-fifth resistor, a seventy-first inductor and a third connector for realizing communication between the inverter and the main control circuit, the third connector comprises a feedback signal output end, a control signal input end and a grounding end, the feedback signal output end is connected with the first end of the seventy-first resistor, a second end of the seventy-first resistor is interconnected with a first end of the seventy-second resistor, a first end of the seventy-first capacitor, an anode of the seventy-first voltage regulator tube, a cathode of the seventy-second voltage regulator tube and a first end of the seventy-third resistor; a second end of the seventy-third resistor is interconnected with a first end of the seventy-second capacitor and a twenty-first pin of the main control chip; a second end of the seventy-second resistor is interconnected with a second end of the seventy-first capacitor, an anode of the seventy-second voltage regulator tube and a second end of the seventy-second capacitor, and is grounded; the cathode of the seventy-first voltage-regulator tube is connected with the output end of the first power supply; the grounding end is grounded through the third inductor; a base electrode of the third triode is connected with a first pin of the main control chip, a collector electrode of the third triode is connected with the first power supply output, and an emitting electrode of the third triode is connected with the control signal input end through the seventy-fourth resistor; the control signal input end is also grounded through the seventy-fifth resistor.
9. The power strip of any one of claims 1 to 8, further comprising a temperature sensing module, wherein the temperature sensing module comprises a fourth transistor, an eighty-first capacitor, an eighty-second capacitor, an eighty-first resistor, an eighty-second resistor, an eighty-third resistor, and a fourth connector, and further comprises a temperature signal input terminal and a temperature control signal output terminal; the fourth connector comprises a temperature signal feedback end; a base electrode of the fourth triode is the temperature control signal output end and is connected with an eighteenth pin of the main control chip, an emitting electrode of the fourth triode is interconnected with the first power output end and the first end of the eighty-three resistor, and a collector electrode of the fourth triode is interconnected with the first end of the eighty-two resistor, the second end of the eighty-three resistor, the first end of the eighty-two capacitor and the temperature signal feedback end through the eighty-two resistor; a second end of the eighty-first resistor is the temperature signal input end and is grounded through the eighty-first capacitor; a second end of the eighty-two capacitor is grounded; the ground terminal of the fourth connector is grounded.
10. The power strip of claim 2, wherein said main control circuit further comprises a zero crossing detection circuit, said zero crossing detection circuit comprising a current limiting resistor, a second optocoupler, a ninety first resistor, a ninety second resistor, and a ninety first capacitor, a first end of said current limiting resistor being connected to a hot line of said ac power source, a second end of said current limiting resistor being connected to an anode of said second optocoupler; the cathode of the second optical coupler is grounded, the collector of the second optical coupler is interconnected with the first end of the ninety first resistor and the first end of the ninety second resistor, and the emitter of the second optical coupler is grounded; a second end of the ninety first resistor is connected to the first power supply output; a second end of the ninety second resistor is a feedback end of a zero-crossing point detection circuit and is interconnected with a first end of the ninety first capacitor and a sixth pin of the main control chip; and the second end of the ninety first capacitor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599608.XA CN106130318B (en) | 2016-07-26 | 2016-07-26 | Power panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599608.XA CN106130318B (en) | 2016-07-26 | 2016-07-26 | Power panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106130318A true CN106130318A (en) | 2016-11-16 |
| CN106130318B CN106130318B (en) | 2019-02-01 |
Family
ID=57289924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610599608.XA Active CN106130318B (en) | 2016-07-26 | 2016-07-26 | Power panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106130318B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298315A (en) * | 2018-09-30 | 2019-02-01 | 三门康创电子科技有限公司 | A kind of full-automatic detection circuit of oven power panel and its detection method |
| CN111544678A (en) * | 2020-04-21 | 2020-08-18 | 重庆军卫医药物流有限公司 | Intelligent pollution decontamination equipment and working method thereof |
| CN113110125A (en) * | 2021-03-15 | 2021-07-13 | 三门康创电子科技有限公司 | Fruit and vegetable machine control circuit, fruit and vegetable machine and fruit and vegetable machine control method |
| CN114002491A (en) * | 2021-10-29 | 2022-02-01 | 公牛集团股份有限公司 | Zero point detection circuit and clutter detection system |
| WO2024141021A1 (en) * | 2022-12-30 | 2024-07-04 | 广东美的厨房电器制造有限公司 | Cooking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080085502A (en) * | 2007-03-20 | 2008-09-24 | 엘지전자 주식회사 | Broadcasting receiver and control method of control pad using it |
| CN201171237Y (en) * | 2008-01-11 | 2008-12-24 | 雷淘淘 | Portable thermostatic control case |
| CN101838911A (en) * | 2009-10-22 | 2010-09-22 | 深圳和而泰智能控制股份有限公司 | Control device of rotary-drum washing machine and washing machine thereof |
| CN104214897A (en) * | 2014-08-27 | 2014-12-17 | 上海加冷松芝汽车空调股份有限公司 | Color screen universal menu-type function selection air conditioner controller |
| CN105407549A (en) * | 2015-12-02 | 2016-03-16 | 广东美的厨房电器制造有限公司 | Power panel, electric heating device and assembly method of electric heating device |
-
2016
- 2016-07-26 CN CN201610599608.XA patent/CN106130318B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080085502A (en) * | 2007-03-20 | 2008-09-24 | 엘지전자 주식회사 | Broadcasting receiver and control method of control pad using it |
| CN201171237Y (en) * | 2008-01-11 | 2008-12-24 | 雷淘淘 | Portable thermostatic control case |
| CN101838911A (en) * | 2009-10-22 | 2010-09-22 | 深圳和而泰智能控制股份有限公司 | Control device of rotary-drum washing machine and washing machine thereof |
| CN104214897A (en) * | 2014-08-27 | 2014-12-17 | 上海加冷松芝汽车空调股份有限公司 | Color screen universal menu-type function selection air conditioner controller |
| CN105407549A (en) * | 2015-12-02 | 2016-03-16 | 广东美的厨房电器制造有限公司 | Power panel, electric heating device and assembly method of electric heating device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298315A (en) * | 2018-09-30 | 2019-02-01 | 三门康创电子科技有限公司 | A kind of full-automatic detection circuit of oven power panel and its detection method |
| CN111544678A (en) * | 2020-04-21 | 2020-08-18 | 重庆军卫医药物流有限公司 | Intelligent pollution decontamination equipment and working method thereof |
| CN113110125A (en) * | 2021-03-15 | 2021-07-13 | 三门康创电子科技有限公司 | Fruit and vegetable machine control circuit, fruit and vegetable machine and fruit and vegetable machine control method |
| CN113110125B (en) * | 2021-03-15 | 2022-04-01 | 三门康创电子科技有限公司 | Fruit and vegetable machine control circuit, fruit and vegetable machine and fruit and vegetable machine control method |
| CN114002491A (en) * | 2021-10-29 | 2022-02-01 | 公牛集团股份有限公司 | Zero point detection circuit and clutter detection system |
| CN114002491B (en) * | 2021-10-29 | 2024-03-01 | 公牛集团股份有限公司 | Zero detection circuit and clutter detection system |
| WO2024141021A1 (en) * | 2022-12-30 | 2024-07-04 | 广东美的厨房电器制造有限公司 | Cooking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106130318B (en) | 2019-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106130318B (en) | Power panel | |
| CN101646290B (en) | Led drive circuit | |
| WO2005025274A1 (en) | Led temperature-dependent power supply system and method | |
| CN204069443U (en) | A kind of electronic switch | |
| CN116093908B (en) | Low surge circuit with low dimming turn-off loss | |
| CN106602665A (en) | Wireless charging system and device capable of intelligently adjusting charging power | |
| CN110461072B (en) | Isolation dimming circuit and lamp | |
| CN212305733U (en) | Independent DALI conversion module of adjusting luminance | |
| CN215121260U (en) | Ceiling fan lamp control circuit and ceiling fan lamp | |
| WO2018214105A1 (en) | Led driving circuit, led lighting apparatus, and electronic device | |
| CN213213909U (en) | Novel intelligent dimming power supply control device | |
| CN211429598U (en) | Drive circuit and electronic product | |
| CN102468068A (en) | Light touch electronic power switch circuit | |
| CN202183903U (en) | Light modulator | |
| CN221242509U (en) | Intelligent control circuit of electric pressure cooker | |
| CN111988898A (en) | Independent DALI conversion module of adjusting luminance | |
| CN201191364Y (en) | Electric appliance control system having power supply controller | |
| CN114928259B (en) | Communication interface circuit and power utilization device | |
| CN220732596U (en) | Discharging module, circuit board, power module and electrical equipment | |
| CN110621104A (en) | Circuit for reducing standby power consumption and electronic equipment | |
| CN2481112Y (en) | Remote control light-adjustable electronic ballast | |
| CN106535414B (en) | Induction control circuit and LED power supply driving control circuit | |
| CN220628949U (en) | Switch power supply | |
| CN211061879U (en) | Load driving circuit and electronic equipment | |
| CN205787738U (en) | A kind of multicircuit relay switch controlling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |