CN201008141Y - Two wire terminal intelligent power supply switch - Google Patents
Two wire terminal intelligent power supply switch Download PDFInfo
- Publication number
- CN201008141Y CN201008141Y CNU2007200669976U CN200720066997U CN201008141Y CN 201008141 Y CN201008141 Y CN 201008141Y CN U2007200669976 U CNU2007200669976 U CN U2007200669976U CN 200720066997 U CN200720066997 U CN 200720066997U CN 201008141 Y CN201008141 Y CN 201008141Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- intelligent power
- current
- power switch
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a two-end intelligent power source switch, which comprises a master controllable silicon (SCRI), a current limit resistance (MR) and a controller, wherein fire line passes through the current limit resistance (MR), master controllable silicon (SCRI) and is connected in series with load, then goes back to the zero line to form a loop, the controller is arranged between the master controllable silicon (SCRI) and the current limit resistance (MR), the current limit resistance (MR) is for limiting short circuit current in bearing range of the master controllable silicon (SCRI) and serves as sampling resistance of over current protection, the controller controls switch on and off of the master controllable silicon (SCRI), the controller comprises an unlock circuit, a switch off circuit, a power source circuit, an over voltage detecting circuit, an over current detecting circuit, a short circuit detecting circuit, a temperature detecting circuit, an MCM and an output circuit. Since the two end intelligent power source switch is of a plurality of function, low manufacture cost and price, the utility model is a reasonable high level power source switch.
Description
Ji Shu Collar territory
The utility model relates to a kind of two line end intelligent power switch, belongs to the low voltage electrical apparatus technology field.
Background technology
In the low voltage electrical apparatus technology field, two line end intelligent power switch, commonplace as the mains switch application, this is because the multifunction switch that this switch has various electric loading versatility, multiple function and can adapt to remote-control and networkingization.
Two line end intelligent power switch, representational product are the sincere solid-state power switch of U.S. Liu Zhong, and the mains switch of his exploitation is characterized in the structure solidification, uses generalization, uses multifunction, operates through touching, Control Networkization and remoteization.
But, this solid-state power switch, owing to wherein an integrated controller arranged, so manufacturing cost height, price height, be difficult for applying.
Summary of the invention
The purpose of this utility model is to provide a kind of two line end intelligent power switch, and this switching function is many, generalization, low cost of manufacture, price are low.
For achieving the above object, the technical solution of the utility model is: this two line ends intelligent power switch comprises silicon controlled main rectifier (SCRI), current-limiting resistance (MR) and controller.Live wire is got back to zero line through current-limiting resistance (MR), silicon controlled main rectifier (SCRI), load series connection, forms the loop, and controller is connected between silicon controlled main rectifier, the current-limiting resistance; Current-limiting resistance (MR) is used for limiting short-circuit current, and short circuit current is limited in the scope that silicon controlled main rectifier (SCRI) can bear, and as the sample resistance of overcurrent protection, the turning on and off of controller control silicon controlled main rectifier (SCRI).
Wherein said controller comprises open circuit, shut-off circuit, power circuit, overvoltage detection, overcurrent detection, short-circuit detecting, temperature detection, MCM, output circuit.
The beneficial effects of the utility model:, be a kind of desirable high-end mains switch because this two line end intelligent power switch functions are many, low cost of manufacture, price are low.
Description of drawings
Fig. 1 is the utility model two line end intelligent power switch logic diagrams;
Fig. 2 is the block diagram that the controller of the utility model two line end intelligent power switch constitutes;
Fig. 3 is the concrete line map of open circuit of the controller of the utility model two line end intelligent power switch;
Fig. 4 is the concrete line map of power circuit of the controller of the utility model two line end intelligent power switch;
Fig. 5 is the concrete line map of overvoltage detection circuit of the controller of the utility model two line end intelligent power switch;
Fig. 6 is the concrete line map of short-circuit detecting circuit of the controller of the utility model two line end intelligent power switch;
Fig. 7 is the concrete line map of overcurrent sensing circuit of the controller of the utility model two line end intelligent power switch;
Fig. 8 is the concrete line map of temperature sensing circuit of the controller of the utility model two line end intelligent power switch;
Fig. 9 is the concrete line map of output circuit of the controller of the utility model two line end intelligent power switch;
Figure 10 is the concrete line map of shut-off circuit of the controller of the utility model two line end intelligent power switch;
Figure 11 is the software flow pattern of the utility model two line end intelligent power switch.
Embodiment
Below in conjunction with drawings and Examples to the utility model detailed explanation of making comparisons.
With reference to Fig. 1, this is the utility model two line end intelligent power switch logic diagrams.
As shown in the figure, the utility model two line end intelligent power switch comprise load 1, silicon controlled main rectifier (SCRI) 2, current-limiting resistance (MR) 3, controller 4; Live wire is got back to zero line through current-limiting resistance (MR) 3, silicon controlled main rectifier (SCRI) 2, load 1 series connection, forms the loop, between silicon controlled main rectifier (SCRI), the current-limiting resistance (MR) controller 4 is arranged; Current-limiting resistance (MR) is used for limiting short-circuit current, and short circuit current is limited in the scope that silicon controlled main rectifier (SCRI) can bear, and as the sample resistance of overcurrent protection, the turning on and off of controller control silicon controlled main rectifier (SCRI).
With reference to Fig. 2, this is the block diagram of the controller formation of the utility model two line end intelligent power switch.
As shown in the figure, the controller of the utility model two line end intelligent power switch is unwrapped and is opened circuit 5, shut-off circuit 6, power circuit 7, overvoltage detection 8, overcurrent detection 9, short-circuit detecting 10, temperature detection 11, single-chip microprocessor MCU 12, output circuit 13.
Controller is to be core with single-chip microprocessor MCU 12, obtains the 5V direct voltage by open circuit 5 and supplies with single-chip microprocessor MCU 12 work, reads the signal that each testing circuit is sent here after the single-chip microcomputer work, whether opens or closes silicon controlled main rectifier (SCRI) 2 with decision.
With reference to Fig. 3, this is the concrete line map of controller open circuit of the utility model two line end intelligent power switch.
As shown in the figure, DB1 is the ac voltage rectifier at silicon controlled main rectifier (SCRI) two ends high voltage direct current HV1 by the bridge heap, HV1 is divided into two-way, and one the tunnel through becoming the direct voltage MV1 supply touch amplifier of 24V behind TVS1, the R24, touches amplifier and form a darlington amplifier by Q1, Q2, Q3; Other one the tunnel supplies with single-chip microprocessor MCU 12 through the direct voltage VDD that becomes 5V behind R25, Q4, the R10 works.Electrode J1 is made of a fritter copper sheet, be used to respond to the voltage signal of human body, give the base stage that touches amplifier input terminal Q1 after the induced voltage process diode D1 that it is obtained, the D2 rectification, after three grades of amplifications, drive Q4 and make its conducting, high voltage direct current HV1 through R25, R10 step-down again by voltage stabilizing didoe ZD4 voltage limit below 5V, make single-chip microprocessor MCU 12 obtain voltage VDD and start working.Capacitor C 1 is used for the filtering High-frequency Interference.
With reference to Fig. 4, this is the concrete line map of controller power circuit of the utility model two line end intelligent power switch.
As shown in the figure, power circuit comprises SCR2, Q1, DB1, R9, R10, ZD3, ZD4, C5.Controlling output circuit after single-chip microcomputer is started working, make output circuit point drive optocoupler U2-1, U2-2 simultaneously, make silicon controlled main rectifier SCR1 and 2 conductings simultaneously of auxiliary controllable silicon SCR, high direct voltage HV1 is through being depressured to direct voltage VDD1 about 6V by Q1 again behind the SCR2, obtain the vdd voltage of 5V again through R10, ZD4 amplitude limit, open circuit at this moment " " just can quit work.
This is the concrete line map of controller overvoltage detection circuit of the utility model two line end intelligent power switch with reference to Fig. 5.
As shown in the figure, this circuit comprises voltage stabilizing didoe TVS, ZD8, R22, D2.When alternating voltage too high, and silicon controlled main rectifier (SCRI) does not also have conducting, the peak value of high voltage direct current HV1 surpasses 360V, the effective value of corresponding alternating voltage is 260V, voltage stabilizing didoe TVS conducting, this voltage detect through giving single-chip microprocessor MCU 12 behind the D2 through R22, ZD8 amplitude limit again, when single-chip microcomputer detects this voltage, just can not open silicon controlled main rectifier (SCRI).
With reference to Fig. 6, this is the concrete line map of controller short-circuit detecting circuit of the utility model two line end intelligent power switch.
As shown in the figure, this circuit comprises bridge heap DB2, voltage stabilizing didoe ZD6, drives optocoupler U3-1, resistance R 6, R11～R13, triode Q4.When load short circuits, all input voltages will be added in current-limiting resistance MR two ends, this moment voltage through after the DB2 rectification, again through resistance R 6, voltage stabilizing didoe ZD6, remove to drive optocoupler U3-1, give single-chip microcomputer by Q4 after anti-phase again.Voltage stabilizing didoe ZD6 adds for the starting current influence of avoiding load.
With reference to Fig. 7, this is the concrete circuit of controller overcurrent sensing circuit of the utility model two line end intelligent power switch.
As shown in the figure, this circuit comprises DB2, resistance R 7, R8, R10, R15, ZD7, D1, U3-2, Q3, C4.Load current forms voltage drop on current-limiting resistance MR, when the optocoupler U3-2 conducting during greater than the voltage stabilizing value of voltage stabilizing didoe ZD7 of this voltage, VDD1 gives single-chip microcomputer through U3-2, resistance R 14, diode D1 and detects.Resistance R 14, R15 and capacitor C 4 are formed a filter circuit, are for avoiding the influence of of short duration starting overcurrent.Q3 is that when short circuit took place, all input voltages will be added in two ends of current-limiting resistance MR for protection optocoupler U3-2 adds; after the DB2 rectification, major part drops on the resistance R 7, makes it flow through hundreds of milliamperes of electric currents; this electric current bypasses major part by Q3, and optocoupler U3-2 is escaped injury.
With reference to Fig. 8, this is the concrete circuit of controller temperature sensing circuit of the utility model two line end intelligent power switch.
As shown in the figure, this circuit comprises Rt, T5.Thermistor Rt is installed on the fin of the more current-limiting resistance MR of heating, is used for detecting the working temperature of MR.Giving single-chip microcomputer after Rt and the R5 series connection dividing potential drop detects.
With reference to Fig. 9, this is the concrete circuit of controller output circuit of the utility model two line end intelligent power switch.
As shown in the figure, this circuit comprises Q5, Q6, Q7, Q8, R7, R16～R21.Single-chip microcomputer is exported two road signals, amplifies rear drive optocoupler U3-1 and U3-2 through Q5, Q6 and Q7, Q8, drives silicon controlled main rectifier (SCRI) by U3-1 again, and U3-2 drives auxiliary controllable silicon SCR 2.
With reference to Figure 10, this is the concrete circuit of controller shut-off circuit of the utility model two line end intelligent power switch.
As shown in the figure, this circuit comprises Q4～Q6, D3, D4, R12～R15, C2, C3, C4, SCR3, J2.Induction electrode J2 is made of a fritter copper sheet, is used to respond to the voltage signal of human body.Give the touch amplifier after induced voltage process diode D1, the D2 rectification, amplifier is made up of Q4, Q5, Q6.Voltage after the amplification is by the collector electrode output of Q6, through the integration filter rear drive controllable silicon SCR of being made up of R12, R13, C3, C4 3.When the SCR3 conducting, optocoupler U2-2 dead electricity is closed auxiliary controllable silicon SCR 2, is directed at low-voltage DC VDD1 and VDD and disappears, and entire circuit quits work.Capacitor C 1 is used for the filtering High-frequency Interference.
With reference to Figure 11, this is the software program flow chart of the utility model two line end intelligent power switch.
As shown in the figure, its step is as follows: the mat woven of fine bamboo strips one step " beginning " 14, to two steps of the mat woven of fine bamboo strips " internal initialization " 15, go on foot to the mat woven of fine bamboo strips three " whether overvoltage or overcurrent " judge 16, if just go on foot to the mat woven of fine bamboo strips six " close silicon controlled main rectifier " 19; If not, just to the mat woven of fine bamboo strips four step " whether temperature is too high " judge 17, if just go on foot to the mat woven of fine bamboo strips six " close silicon controlled main rectifier " 19; If not, to the mat woven of fine bamboo strips five step " whether short circuit " judge, if just go on foot to the mat woven of fine bamboo strips six " close silicon controlled main rectifier " 19; If not, just return two steps of the mat woven of fine bamboo strips " internal initialization " 15.
Claims (8)
1. two line end intelligent power switch, comprise silicon controlled main rectifier, current-limiting resistance and integrated controller, it is characterized in that: described controller is the controller that a kind of discrete device is formed, and this controller comprises open circuit, shut-off circuit, power circuit, overvoltage detection, overcurrent detection, short-circuit detecting, temperature detection, MCM, output circuit;
Live wire is got back to zero line through current-limiting resistance, silicon controlled main rectifier, load series connection, forms the loop, and controller is connected between silicon controlled main rectifier, the current-limiting resistance.
2. two line end intelligent power switch as claimed in claim 1 is characterized in that: the open circuit of described controller comprises bridge heap DB1, touch amplifier Q1, Q2, Q3, TVS1, resistance R 24, R25, R10, R1～R3, D1, D2, ZD1, ZD4, Q4, C3 and electrode J1; DB1 is the ac voltage rectifier at silicon controlled main rectifier two ends high voltage direct current HV1 by the bridge heap, and HV1 is divided into two-way, becomes 24V behind one tunnel process TVS1, the R24, and other one the tunnel through becoming the direct voltage VDD of 5V behind R25, Q4, the R10; Electrode J1 is a fritter copper sheet.
3. two line end intelligent power switch as claimed in claim 1 is characterized in that: the power circuit of described controller comprises SCR2, Q1, DB1, R9, R10, ZD3, ZD4, C5; Controlling output circuit after single-chip microcomputer is started working, make output circuit point drive optocoupler U2-1, U2-2 simultaneously, make silicon controlled main rectifier SCR1 and 2 conductings simultaneously of auxiliary controllable silicon SCR, high direct voltage HV1 obtains the vdd voltage of 5V again through being depressured to direct voltage VDD1 about 6V by Q1 again behind the SCR2 through R10, ZD4 amplitude limit.
4. two line end intelligent power switch as claimed in claim 1 is characterized in that: the short-circuit detecting circuit of described controller, comprise bridge heap DB2, and voltage stabilizing didoe ZD6 drives optocoupler U3-1, resistance R 6, R11～R13, triode Q4; When load short circuits, all input voltages will be added in current-limiting resistance MR two ends, this moment voltage through after the DB2 rectification, remove to drive optocoupler U3-1 through resistance R 6, voltage stabilizing didoe ZD6 again, give single-chip microcomputer by Q4 after anti-phase again.
5. two line end intelligent power switch as claimed in claim 1 is characterized in that: the overcurrent sensing circuit of described controller, this circuit comprise DB2, resistance R 7, R8, R10, R15, ZD7, D1, U3-2, Q3, C4; Load current forms voltage drop on current-limiting resistance MR, voltage is optocoupler U3-2 conducting during greater than the voltage stabilizing value of voltage stabilizing didoe ZD7, VDD1 gives single-chip microcomputer through U3-2, resistance R 14, diode D1 and detects, and resistance R 14, R15 and capacitor C 4 are formed a filter circuit.
6. two line end intelligent power switch as claimed in claim 1 is characterized in that: described controller temperature sensing circuit, and this circuit comprises Rt, T5; Thermistor Rt is installed on the fin of the more current-limiting resistance MR of heating, is used for detecting the working temperature of MR.
7. two line end intelligent power switch as claimed in claim 1, it is characterized in that: described controller output circuit, this circuit comprises Q5, Q6, Q7, Q8, R7, R16～R21, single-chip microcomputer is exported two road signals, amplify rear drive optocoupler U3-1 and U3-2 through Q5, Q6 and Q7, Q8, drive silicon controlled main rectifier (SCRI) by U3-1 again, U3-2 drives auxiliary controllable silicon SCR 2.
8. two line end intelligent power switch as claimed in claim 1 is characterized in that: described controller shut-off circuit, and this circuit comprises Q4～Q6, D3, D4, R12～R15, C2, C3, C4, SCR3, J2; Induction electrode J2 is made of a fritter copper sheet, is used to respond to the voltage signal of human body; Give Q4, Q5, Q6 amplifier after induced voltage process diode D1, the D2 rectification, export by Q6, through by R12, R13, C3, C4 integration filter rear drive controllable silicon SCR 3, when the SCR3 conducting, optocoupler U2-2 dead electricity, close auxiliary controllable silicon SCR 2, be directed at low-voltage DC VDD1 and VDD and disappear, entire circuit quits work, and capacitor C 1 is used for the filtering High-frequency Interference, 1 and VDD disappear, entire circuit quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200669976U CN201008141Y (en) | 2007-02-02 | 2007-02-02 | Two wire terminal intelligent power supply switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200669976U CN201008141Y (en) | 2007-02-02 | 2007-02-02 | Two wire terminal intelligent power supply switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008141Y true CN201008141Y (en) | 2008-01-16 |
Family
ID=39004090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200669976U Expired - Fee Related CN201008141Y (en) | 2007-02-02 | 2007-02-02 | Two wire terminal intelligent power supply switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008141Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917811A (en) * | 2010-08-02 | 2010-12-15 | 西安新光明电子科技有限公司 | Anti-noise jamming high-side drive circuit |
| CN102148488A (en) * | 2010-02-09 | 2011-08-10 | 松下电器产业株式会社 | Circuit device |
| CN102237864A (en) * | 2010-05-06 | 2011-11-09 | 深圳市博巨兴实业发展有限公司 | Intelligent switching circuit |
| CN101599630B (en) * | 2009-06-09 | 2011-11-23 | 深圳和而泰智能控制股份有限公司 | Method, device and switch for protecting resistive alternating current load from being shorted out |
| CN102511010A (en) * | 2009-09-24 | 2012-06-20 | 罗伯特·博世有限公司 | Electric circuit configuration for switching an electrical load |
| CN102541229A (en) * | 2010-12-20 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Start-up control device and method |
| CN103197579A (en) * | 2013-02-07 | 2013-07-10 | 广州松下空调器有限公司 | Switching-on/switching-off controlling method of switching element driving alternating load and circuit |
| CN106998135A (en) * | 2017-04-19 | 2017-08-01 | 北方工业大学 | Intrinsically safe Buck circuit |
-
2007
- 2007-02-02 CN CNU2007200669976U patent/CN201008141Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599630B (en) * | 2009-06-09 | 2011-11-23 | 深圳和而泰智能控制股份有限公司 | Method, device and switch for protecting resistive alternating current load from being shorted out |
| CN102511010B (en) * | 2009-09-24 | 2016-08-03 | 罗伯特·博世有限公司 | For switching the circuit arrangement of electric loading |
| CN102511010A (en) * | 2009-09-24 | 2012-06-20 | 罗伯特·博世有限公司 | Electric circuit configuration for switching an electrical load |
| CN102148488B (en) * | 2010-02-09 | 2015-04-22 | 松下电器产业株式会社 | Circuit device |
| CN102148488A (en) * | 2010-02-09 | 2011-08-10 | 松下电器产业株式会社 | Circuit device |
| CN102237864A (en) * | 2010-05-06 | 2011-11-09 | 深圳市博巨兴实业发展有限公司 | Intelligent switching circuit |
| CN102237864B (en) * | 2010-05-06 | 2013-03-27 | 深圳市博巨兴实业发展有限公司 | Intelligent switching circuit |
| CN101917811B (en) * | 2010-08-02 | 2013-04-17 | 西安文理学院 | Anti-noise jamming high-side drive circuit |
| CN101917811A (en) * | 2010-08-02 | 2010-12-15 | 西安新光明电子科技有限公司 | Anti-noise jamming high-side drive circuit |
| CN102541229A (en) * | 2010-12-20 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Start-up control device and method |
| CN103197579A (en) * | 2013-02-07 | 2013-07-10 | 广州松下空调器有限公司 | Switching-on/switching-off controlling method of switching element driving alternating load and circuit |
| CN103197579B (en) * | 2013-02-07 | 2016-01-20 | 广州松下空调器有限公司 | A kind of open and close controlling method and circuit driving the switching device of AC load |
| CN106998135A (en) * | 2017-04-19 | 2017-08-01 | 北方工业大学 | Intrinsically safe Buck circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201008141Y (en) | Two wire terminal intelligent power supply switch | |
| CN201270005Y (en) | Constant temperature controller for greenhouse | |
| CN106162998B (en) | A kind of LED drive controls circuit, control device and control method | |
| CN203339998U (en) | Compressor soft start controller and compressor | |
| CN201616805U (en) | Phase control power-saving control circuit used for asynchronous motor | |
| CN203883795U (en) | Single-live-wire intelligent switch control circuit | |
| CN206024180U (en) | A kind of LED lamp tube power driving circuit | |
| CN204557248U (en) | A kind of electron temperature automaton | |
| CN104253445A (en) | Single-phase photovoltaic grid-connected system and method | |
| CN206314031U (en) | A kind of LED drive circuit and LED light device | |
| CN203282005U (en) | Electric soldering iron rapid warming automatic control circuit | |
| CN106580082B (en) | A kind of instant electric water heater's application circuit | |
| CN200990025Y (en) | Electric heating carpet temperature controller | |
| CN210247116U (en) | Silicon controlled control circuit of touch dimming switch | |
| CN203156191U (en) | Efficient electric soldering iron | |
| CN215419571U (en) | Over-temperature prevention detection and protection circuit | |
| CN201490913U (en) | Multifunctional soft-touch power switch control circuit | |
| CN105305813B (en) | Frequency-variable kitchen ventilator | |
| CN201608925U (en) | Multiregion control circuit used for sensing heating power supply | |
| CN101702581A (en) | Home-use 2000w constant voltage and constant frequency regulator | |
| CN105065769A (en) | Temperature control system for tap heating | |
| CN201718065U (en) | Inductor controller and inductor heating device employing same, | |
| CN208754198U (en) | A kind of switch power supply system with power-off protection | |
| CN208571934U (en) | A kind of sine wave intelligence decompression conversion equipment | |
| CN206542333U (en) | High stability transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 |