CN110248440A - A kind of two-way Switching power and lamp device - Google Patents
A kind of two-way Switching power and lamp device Download PDFInfo
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- CN110248440A CN110248440A CN201910371603.5A CN201910371603A CN110248440A CN 110248440 A CN110248440 A CN 110248440A CN 201910371603 A CN201910371603 A CN 201910371603A CN 110248440 A CN110248440 A CN 110248440A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
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Abstract
The embodiment of the invention discloses a kind of two-way Switching power and lamp device, lamp device includes input switch, the first LED light, the second LED light and two-way Switching power；The input switch controls the output of alternating current according to open and-shut mode, and two-way Switching power filters alternating current harmonic shock, generates square-wave signal, according to the light on and off state of square-wave signal and preset logical order control the first LED light and the second LED light.By being that PF value can be improved, then no stroboscopic can be realized by filtering to alternating current harmonic shock, the current switching of power supply two-way output can be controlled simultaneously using an input switch, realize that three kinds of lamps and lanterns different-colour switch, reached high PF value, the output effect without stroboscopic.
Description
Technical field
The present invention relates to communication technique field more particularly to a kind of two-way Switching powers and lamp device.
Background technique
In the power supply design of existing lamps and lanterns product, if being made into high PF value (power factor), lamps and lanterns can generate similar stroboscopic
The phenomenon that.If the high PF value of power supply is removed, it is made into low PF value and inefficient power supply, there will be no stroboscopics.If being made into without frequency
The power supply with high PF value again is dodged, double cost is needed.
Summary of the invention
In view of the above technical problems, the embodiment of the invention provides a kind of two-way Switching power and lamp devices, to solve
Existing lamps and lanterns output effect is without stroboscopic but the low problem of PF value.
The embodiment of the present invention provides a kind of two-way Switching power comprising the conversion module that is integrated on a circuit board and opens
Close detection module；
The conversion module generates square-wave signal after carrying out harmonic shock, rectification, filtering to alternating current, switchs detection module to square wave
Signal carries out rectifying and wave-filtering, when detecting square-wave signal, according to preset logical order and current light on and off state adjustment first
The light on and off state of LED light and the second LED light.
Optionally, in the two-way Switching power, the conversion module includes input circuit, EMI filter circuit, rectification
Bridge, harmonic shock circuit, driving circuit and output control circuit；
The size of the input circuit detection alternating current simultaneously carries out AC Protection, and EMI filter circuit is for filtering out electromagnetic interference simultaneously
Noise is filtered out, rectifier bridge filters commercial power rectification, harmonic shock circuit to alternating current harmonic shock, driving circuit timesharing driving output square wave letter
Number, output control circuit is used to adjust the voltage of square-wave signal.
Optionally, in the two-way Switching power, the input circuit includes first interface, fuse and pressure-sensitive electricity
Resistance；One end of the 1st foot connection input switch, one end of varistor and the EMI filter circuit of the first interface, input switch
The other end connect zero curve, first interface the 2nd foot connection firewire and fuse one end, fuse the other end connection it is pressure-sensitive
The other end and EMI filter circuit of resistance.
Optionally, in the two-way Switching power, the EMI filter circuit includes common mode inductance, differential mode inductance, first
Differential mode capacitor, the second differential mode capacitor and first resistor；
One end of one end connection varistor of first differential mode capacitor and the 1st foot of common mode inductance, the first differential mode electricity
The other end of the other end connection varistor of appearance and the 2nd foot of common mode inductance；3rd foot of common mode inductance connects the second differential mode electricity
One end of appearance, rectifier bridge the 1st foot harmony seismoelectric road；4th foot of common mode inductance connects the second differential mode capacitor by first resistor
The other end, rectifier bridge the 3rd foot and switch detection module；Differential mode inductance is in parallel with first resistor.
Optionally, in the two-way Switching power, the harmonic shock circuit includes first diode, first capacitor, second
Capacitor, the first electrolytic capacitor and third capacitor；
One end, one end of third capacitor and the 2nd foot of rectifier bridge of the cathode connection first capacitor of the first diode；
The anode connection other end of third capacitor, the cathode of the first electrolytic capacitor, driving circuit and the sample circuit of first diode；The
One end of two capacitors connects one end of the second differential mode capacitor and the 1st foot of rectifier bridge, the first electricity of other end connection of the second capacitor
The other end and ground of appearance, the 4th foot and driving circuit of the anode connection rectifier bridge of the first electrolytic capacitor.
Optionally, in the two-way Switching power, the driving circuit includes: the first triode, the second triode,
One transformer, the second triode, third transistor, second resistance, 3rd resistor, the 4th capacitor, the 5th capacitor and the 6th capacitor；
1st foot of first transformer by second resistance connect the first triode base stage and the 4th capacitor one
End；2nd foot of the first transformer connects the other end of the 3rd foot of the first transformer, the emitter of the first triode, the 4th capacitor
With the collector of the second triode；4th foot of the first transformer connect the anode of the second diode, third diode cathode,
One end of 6th capacitor and output control circuit；5th foot of the first transformer connects the 6th foot of the first transformer, 3rd resistor
One end, first diode anode and sample circuit；7th foot of the first transformer and the 8th foot are all connected with output control circuit；
The collector of first triode connects the cathode and output control circuit of the anode of the first electrolytic capacitor, the second diode；Second
The other end of the base stage connection 3rd resistor of triode and one end of the 5th capacitor；The 5th electricity of emitter connection of second triode
The other end of appearance, the other end of the 6th capacitor, the first transformer the 5th foot and third diode anode.
Optionally, in the two-way Switching power, the output control circuit includes: driving chip, chip inductance,
Two transformers, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 4th diode, the 7th capacitor,
Eight capacitors, the 9th capacitor and the tenth capacitor；
One end of the chip inductance connects the cathode and anode of one end of the 4th resistance, the second diode；Chip inductance
The other end connect the second transformer the 5th foot and the 4th diode anode, the second transformer the 1st foot connection power end and
The CS foot of driving chip, the 6th foot to the 9th foot of the second transformer are all connected with switch detection module, TX1 foot, the TX2 of driving chip
Foot is correspondingly connected with the 7th foot, the 8th foot of the first transformer；The VDD foot of driving chip connects the other end of the 4th resistance, the 7th electricity
One end of appearance, one end of the 5th resistance and the 6th resistance one end；The VFB foot of driving chip connects one end of the 7th resistance, the
One end of one end of eight resistance and the tenth capacitor；The other end of 5th resistance connects one end of the 8th capacitor, the 4th diode
One end of cathode, the other end of the 7th resistance and the 9th capacitor；The other end of 7th capacitor, the other end of the 6th resistance, the 8th
The other end of the other end of resistance, the other end of the 9th capacitor and the tenth capacitor is grounded.
Optionally, in the two-way Switching power, the switch detection module includes rectification circuit, energy storage filter circuit
Circuit is adjusted with detection；
The rectification circuit rectifies square-wave signal, and energy storage filter circuit carries out energy storage to the square-wave signal after rectification
Filtering；When detection adjusting circuit detects square-wave signal, the first LED light and the second LED light are switched according to preset logical order
Light on and off state.
Optionally, in the two-way Switching power, the rectification circuit includes the 5th diode and the 6th diode；
9th foot of anode the second transformer of connection of the 5th diode；The cathode connection the six or two of 5th diode
Cathode, energy storage filter circuit and the detection of pole pipe adjust circuit；6th foot of anode the second transformer of connection of the 6th diode.
Second aspect of the embodiment of the present invention provides a kind of lamp device, including input switch, the first LED light, the 2nd LED
Lamp and the two-way Switching power；
The input switch controls the output of alternating current according to open and-shut mode, and two-way Switching power filters alternating current harmonic shock, is raw
At square-wave signal, according to the light on and off state of square-wave signal and preset logical order control the first LED light and the second LED light.
In technical solution provided in an embodiment of the present invention, lamp device includes input switch, the first LED light, the second LED light
With two-way Switching power；The input switch controls the output of alternating current according to open and-shut mode, and two-way Switching power is to alternating current harmonic shock
Filtering generates square-wave signal, according to the light on and off of square-wave signal and preset logical order control the first LED light and the second LED light
State.It, can be same using an input switch by being that PF value can be improved, then no stroboscopic can be realized by filtering to alternating current harmonic shock
When control power supply two-way output current switching, realize three kinds of lamps and lanterns different-colour switchings, reached high PF value, without stroboscopic
Output effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of lamp device in the embodiment of the present invention.
Fig. 2 is the circuit diagram of two-way Switching power in the embodiment of the present invention.
Fig. 3 is the schematic diagram of seven reset modes in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.This hair
Embodiment in bright, those skilled in the art's every other embodiment obtained without creative efforts,
It shall fall within the protection scope of the present invention.
Referring to Fig. 1, lamp device provided in an embodiment of the present invention includes an input switch 10 (AC SWITCH), two-way
(L1 and L2 are respectively a lamp, have two-way individually defeated in each lamp by Switching power 20, the first LED light L1 and the second LED light L2
Out)；The two-way Switching power 20 connects input switch 10, the first LED light L1 and the second LED light L2；10 basis of input switch
Open and-shut mode controls the output of alternating current, and two-way Switching power 20 filters alternating current harmonic shock, generates square-wave signal, according to square-wave signal
With the light on and off state of preset logical order control the first LED light and the second LED light.
Referring to Figure 2 together, in the present embodiment, the two-way Switching power 20 includes the conversion being integrated on a circuit board
Module 21 and switch detection module 22；The conversion module 21 generates square-wave signal after carrying out harmonic shock, rectification, filtering to alternating current,
It switchs detection module 22 and rectifying and wave-filtering is carried out to square-wave signal, when detecting square-wave signal, according to preset logical order and work as
The light on and off state of preceding light on and off state adjustment the first LED light and the second LED light.
In the present embodiment, the conversion module 21 includes input circuit 211, EMI filter circuit 212, rectifier bridge BD, harmonic shock
Circuit 213, driving circuit 214 and output control circuit 215；The EMI filter circuit 212 connects input circuit 211, rectifier bridge
BD harmony seismoelectric road 213, driving circuit 214 connect rectifier bridge BD, harmonic shock circuit 213 and output control circuit 215.
The input circuit 211 detects the size of alternating current and carries out AC Protection, and EMI filter circuit 212 is for filtering out electromagnetism
Noise is interfered and filters out, rectifier bridge BD is to commercial power rectification；Harmonic shock circuit 213 improves PF value to alternating current harmonic shock, and also filtering is with reality
Now without stroboscopic；214 timesharing of driving circuit driving output square-wave signal, output control circuit 215 are used to adjust the electricity of square-wave signal
Pressure.
The input circuit 211 includes first interface CON1, fuse F and varistor RV；The first interface CON1
The 1st foot connection one end of input switch AC SWITCH, varistor RV one end and EMI filter circuit 212, input switch
The other end of AC SWITCH connects zero curve N, one end of the connection of the 2nd foot the firewire L and fuse F of first interface CON1, fuse
The other end and EMI filter circuit 212 of the other end connection varistor RV of F.
Wherein, the first interface CON1 corresponds to control alternating current according to the closure and opening of input switch AC SWITCH
Input and disconnection.Fuse F and varistor RV play the role of AC Protection, disconnect access in alternating current mutation.
The EMI filter circuit 212 includes common mode inductance L1, differential mode inductance L2, the first differential mode capacitor CX1, the second differential mode
Capacitor C2 and first resistor R1；One end of one end connection varistor RV of the first differential mode capacitor CX1 and common mode inductance L1
The 1st foot, the first differential mode capacitor CX1 the other end connection varistor RV the other end and common mode inductance L1 the 2nd foot；Common mode
The 3rd foot of inductance L1 connects the 1st foot harmony seismoelectric road 213 of one end of the second differential mode capacitor C2, rectifier bridge BD；Common mode inductance L1
The 4th foot by the other end of the second differential mode capacitor of first resistor R1 connection C2, rectifier bridge BD the 3rd foot and switch detection module
22；Differential mode inductance L2 is in parallel with first resistor R1.
Wherein, L1 and CX1 and CX2 respectively constitutes the low-pass filter in alternating current inlet wire between two pairs of separate ports, can decline
Subtract common mode interference noise present on alternating current inlet wire and them is prevented to enter, prevents extraneous electromagnetic noise from interfering lamp device itself
The work of the work and load (LED light) of control circuit；The EMI (electromagnetic interference) that lamp device itself can also be inhibited to generate.
The harmonic shock circuit 213 includes first diode D1, first capacitor C1, the second capacitor C2, the first electrolytic capacitor EC1
With third capacitor C3；Cathode connection one end of first capacitor C1 of the first diode D1, one end of third capacitor C3 and whole
Flow the 2nd foot of bridge BD；The anode connection other end of third capacitor C3 of first diode D1, the first electrolytic capacitor EC1 cathode,
Driving circuit 214 and sample circuit 216；One end of second capacitor C2 connects one end and the rectifier bridge BD of the second differential mode capacitor C2
1st foot, the other end and ground of the other end connection first capacitor C1 of the second capacitor C2, the anode connection of the first electrolytic capacitor EC1
The 4th foot and driving circuit 214 of rectifier bridge BD.
Wherein, C1~C3 forms resonant cavity, can improve PF value.Electrolytic capacitor EC is as no stroboscopic device, for realizing nothing
The effect of stroboscopic.Entire harmonic shock circuit 213 can be obtained the lossless efficiency of high PF, the effect without stroboscopic.
The driving circuit 214 includes: the first triode Q1, the second triode Q2, the first transformer T1, the second triode
D2, third transistor D3, second resistance R2,3rd resistor R3, the 4th capacitor C4, the 5th capacitor C5 and the 6th capacitor C6；It is described
The 1st foot of first transformer T1 passes through the base stage of the first triode of second resistance R2 connection Q1 and one end of the 4th capacitor C4；The
One transformer T1 the 2nd foot connection the 3rd foot of the first transformer T1, the emitter of the first triode Q1, the 4th capacitor C4 it is another
The collector of one end and the second triode Q2；The 4th foot of first transformer T1 connects the anode of the second diode D2, the three or two pole
The cathode of pipe D3, one end of the 6th capacitor C6 and output control circuit 215；The 5th foot of first transformer T1 connects the first transformation
The 6th foot, one end of 3rd resistor R3, the anode of first diode D1 and the sample circuit 216 of device T1；The of first transformer T1
7 feet and the 8th foot are all connected with output control circuit 215；The collector of first triode Q1 is connecting the first electrolytic capacitor EC1 just
Pole, the second diode D2 cathode and output control circuit 215；The base stage connection 3rd resistor R3's of second triode Q2 is another
The one end at end and the 5th capacitor C5；The emitter of second triode Q2 connects the other end of the 5th capacitor C5, the 6th capacitor C6
The anode of the other end, the 5th foot of the first transformer T1 and third diode D3.
Wherein, the case where the first triode Q1 and the second triode Q2 only will appear while end, one is connected another cut-off.
It is driven by the timesharing of CT1 signal and CT2 signal, realizes the timesharing conducting of transistor circuit loop.The on-off of Q1 and Q2 exports
Corresponding square-wave signal is to output control circuit 215.
The output control circuit 215 includes: driving chip U1 (model RED2422), chip inductance L3, the second transformation
Device T2, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 4th diode D4, the 7th
Capacitor C7, the 8th capacitor C8, the 9th capacitor C9 and the tenth capacitor C10；One end of the chip inductance L3 connects the 4th resistance R4
One end, the second diode D2 cathode and anode；The other end of chip inductance L3 connects the 5th foot and the of the second transformer T2
The anode of four diode D4, the CS foot of the 1st foot connection power end CS and driving chip U1 of the second transformer T2, the second transformer
The 6th foot to the 9th foot of T2 is all connected with switch detection module 22, and TX1 foot, the TX2 foot of driving chip U1 is correspondingly connected with the first transformation
The 7th foot, the 8th foot of device T1；The VDD foot of driving chip U1 connects the other end of the 4th resistance R4, one end of the 7th capacitor C7, the
One end of five resistance R5 and one end of the 6th resistance R6；The VFB foot of driving chip U1 connects one end of the 7th resistance R7, the 8th electricity
Hinder one end of R8 and one end of the tenth capacitor C10；The other end of 5th resistance R5 connects one end, the four or two pole of the 8th capacitor C8
One end of the cathode of pipe D4, the other end of the 7th resistance R7 and the 9th capacitor C9；The other end, the 6th resistance R6 of 7th capacitor C7
The other end, the 8th resistance R8 the other end, the other end of the 9th capacitor C9 and the other end of the tenth capacitor C10 be grounded.
Wherein, R4 is start-up resistor, and can also connect a resistance again respectively up and down, for the normal starting of power supply,
Guarantee that power supply works normally when each charge and discharge of the 7th capacitor C7.D4, R5, R6, C7, C8 form auxiliary power supply circuit, are used for XX.
D4 also forms output voltage regulation circuit with R7, R8, C9, C10, and the voltage for the square-wave signal to output is adjusted.
In the present embodiment, the output control circuit 215 further includes the first sampling resistor RS1 and the second sampling resistor RS2,
One end of the first sampling resistor RS1 connects power end CS, and the other end of the first sampling resistor RS1 connects the first transformer T1
The 6th foot and power supply bridge heap, the second sampling resistor RS2 is in parallel with the first sampling resistor RS1.By RS1 and RS2 to output electricity
Stream is sampled, and Q1, Q2 can be fed back to, and output electric current can be adjusted in the make-and-break time of adjustment Q1 and Q2.
In the present embodiment, the output control circuit 215 further includes switch SW, pull-up resistor RS3, the first divider resistance
RS4 and the second divider resistance RS5；The 1st foot and the 2nd foot of the switch SW is grounded, and the 3rd foot of switch SW passes through the second partial pressure
4th foot of one end of resistance RS5 connection pull-up resistor RS3, switch SW passes through the first divider resistance RS4 connection pull-up resistor RS3
One end, the other end of pull-up resistor RS3 connects power end CS.
Switch SW is for adjusting output electric current, and using toggle switch, artificial dial-up is i.e. controllable between RS4, RS5 and RS3
Connection status realize the adjusting of output electric current to change the resistance value on sampling circuit (RS1, RS2).
Please continue to refer to Fig. 2, the switch detection module 22 includes rectification circuit 221, energy storage filter circuit 222 and detection
Adjust circuit 223；The rectification circuit 221 connects energy storage filter circuit 222, detection adjusts circuit 223 and output control circuit
215,222 connecting detection of energy storage filter circuit adjusts circuit 223.The rectification circuit 221 rectifies square-wave signal, energy storage
Square-wave signal after 222 pairs of filter circuit rectifications carries out energy storage filtering；When detection adjusting circuit 223 detects square-wave signal, root
According to the light on and off state of preset logical order switching the first LED light and the second LED light.
The rectification circuit 221 includes the 5th diode D5 and the 6th diode D6；The anode of the 5th diode D5
Connect the 9th foot of the second transformer T2；The cathode of 5th diode D5 connects cathode, the energy storage filter circuit of the 6th diode D6
222 adjust circuit 223 with detection；The 6th foot of the second transformer T2 of anode connection of 6th diode.By D5 and D6 to second
The square wave of transformer T2 output is rectified.
The energy storage filter circuit 222 includes the 9th resistance R9, the 11st capacitor C11 and the second electrolytic capacitor EC2, described
One end of 9th resistance R9 connects the cathode of the 5th diode D5, the anode of the second electrolytic capacitor EC2 and detection and adjusts circuit
223；The other end of 9th resistance R9 connects the cathode of the second electrolytic capacitor EC2, one end of the 11st capacitor C11, detection adjusting
The 7th foot and the 8th foot of circuit 223, the second transformer T2；RC filtering is carried out by R9, C11, EC2, meanwhile, EC2 is also stored up
Energy.
It includes that switch color-temperature regulating controls chip U2 (model S4126M), switching tube U3 (type that the detection, which adjusts circuit 223,
Number be SCR02S or SCR092, be composed of as shown in the figure two metal-oxide-semiconductors (U3A, U3B)), second interface CON2, the tenth electricity
Hinder R10, eleventh resistor R11 and the 12nd capacitor C12；The 1st foot (L1 foot) of the switch color-temperature regulating control chip U2, the 3rd
Foot (L2 foot) is correspondingly connected with the 3rd foot (grid of U3B), the 1st foot (grid of U3A) of switching tube U3；It switchs color-temperature regulating and controls core
The 5th foot (CLK foot) of piece U2 passes through the 6th foot of the tenth resistance R10 the second transformer of connection T2；It switchs color-temperature regulating and controls chip U2
The 2nd foot (GND foot) connection one end of the 12nd capacitor C12, the 7th foot of the second transformer T2, the second electrolytic capacitor EC2 it is negative
Pole, switching tube U3 the 2nd foot (U3A drain electrode and U3B drain electrode)；Switch the 4th foot (VDD foot) of color-temperature regulating control chip U2 even
The other end of the 12nd capacitor C12 is connect, the 6th foot (VCC foot) of switch color-temperature regulating control chip U2 is connected by eleventh resistor R11
Connect the cathode of the 6th diode D6, the 2nd foot of the 4th foot (source electrode of U3B) the connection second interface CON2 of switching tube U3, switching tube
The 3rd foot of the 5th foot (source electrode of U3A) the connection second interface CON2 of U3；The 1st foot connection the second electrolysis electricity of second interface CON2
Hold anode, the anode of the first LED light L1 and the positive LED+ of the second LED light L2 of EC2；The 2nd foot of second interface CON2, the 3rd
Foot is correspondingly connected with, the cathode LED2- of the cathode LED1- of the first LED light L1, the second LED light L2.
Wherein, the model S4126M of switch color-temperature regulating control chip U2, the 6th foot are that IC powers foot, the 4th foot external the
12 capacitors realize the retention time, and the 5th foot is that IC detects foot, the 2nd foot is lower margin, connection signal and Power Groud.1st foot and
3 feet are driving foot, conducting and cut-off for driving switch pipe U3.Since the 5th foot of switch color-temperature regulating control chip U2 passes through
The anode of tenth the 6th diode D6 of resistance R10 (detection resistance) connection, in this way switch color-temperature regulating control chip U2 can pass through
5th foot judges the closing or opening of input switch AC SWITCH.
When input switch AC SWITCH closure, alternating current is input in conversion module 21 after progress respective handling, second
A square-wave signal is generated on the 6th foot of transformer T2, switch color-temperature regulating control chip U2 detects square-wave signal, according to preset
The logical order colour temperature state current to the first LED light L1 and the second LED light L2 is adjusted.Preset logical order be L1- >
L1+L2- > L2, i.e., first bright L1, then light L1 and L2 simultaneously, finally light L2, L1 is lighted in return, is so recycled.For example, when inspection
When measuring square-wave signal, if current color temperature state is L1 bright, it is bright simultaneously to be adjusted to L1 and L2；Square-wave signal is detected again,
Current color temperature state is that L1 and L2 is bright simultaneously, then it is bright to be adjusted to L2.Hereby, it is achieved that realize that L1, L2 are individually bright or bright together, it is real
Existing three ends are adjustable, realize that the output power of two LED light converts by an input switch.
When input switch AC SWITCH is disconnected, no alternating current input is then generated without square wave, and switch color-temperature regulating controls chip
The 5th foot of U2 can't detect square-wave signal, and L1 and L2 extinguishes at this time.Since switch color-temperature regulating control chip U2 has memory function
Can, the colour temperature state before turning off the light can be remembered, next time open lamps and lanterns when be directly entered last time turn off the light before colour temperature state, no
It will appear accidentally control, increase ease of use.Also, the first triode Q1, the second triode Q2, chip inductance L3 and second
Transformer T2, which is combined together, has reached efficient effect.
Switch color-temperature regulating control chip U2 can also realize quick No. seven switches reset function, and it is asynchronous, more to solve switch
The problem of use simultaneously of a power supply is without logical miss.
Reset mode:
Seven reset modes as shown in figure 3, reset before must the lamp bright time be more than 2 seconds or more, turn on light for the first time not counting, pass
Lamp-, which is turned on light, to be calculated once, and switch color-temperature regulating control chip can be at the 7th time state reset to the first next state.
Actuation time of turning off the light-turn on light when reset require be turn off the light the time and lighting time all must simultaneously meet it is small with 2
Second, and continuous seven times movements of turning off the light-turn on light must satisfy this requirement, if once turn off the light in reseting procedure or
Person's lighting time does not meet requirements above, and number of resets will be reset and (count again).
After reset, if the movement still turned off the light-turned on light, and the time meets the time resetted, then and chip can be
It is resetted again when turning on light for 14 times, and so on.
In conclusion two-way Switching power provided by the invention and lamp device, pass through regular tap (i.e. input switch)
The size of current and current switching of the output of power supply two-way are controlled, three kinds of lamps and lanterns different-colour switchings is realized, also can be used as lamp
Have the switching of different light emitting angles, has reached high PF value, the output effect without stroboscopic.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of two-way Switching power, which is characterized in that including the conversion module and switch detection mould being integrated on a circuit board
Block；
The conversion module generates square-wave signal after carrying out harmonic shock, rectification, filtering to alternating current, switchs detection module to square-wave signal
Rectifying and wave-filtering is carried out, when detecting square-wave signal, the first LED light is adjusted according to preset logical order and current light on and off state
With the light on and off state of the second LED light.
2. two-way Switching power according to claim 1, which is characterized in that the conversion module includes input circuit, EMI
Filter circuit, rectifier bridge, harmonic shock circuit, driving circuit and output control circuit；
The size of the input circuit detection alternating current simultaneously carries out AC Protection, and EMI filter circuit is for filtering out electromagnetic interference and filtering out
Noise, rectifier bridge filter commercial power rectification, harmonic shock circuit to alternating current harmonic shock, driving circuit timesharing driving output square-wave signal, defeated
Control circuit is used to adjust the voltage of square-wave signal out.
3. two-way Switching power according to claim 2, which is characterized in that the input circuit includes first interface, protects
Dangerous silk and varistor；One end of the 1st foot connection input switch, one end of varistor and the EMI filtering of the first interface
Circuit, the other end of input switch connect zero curve, and the 2nd foot of first interface connects one end of firewire and fuse, fuse
The other end and EMI filter circuit of other end connection varistor.
4. two-way Switching power according to claim 3, which is characterized in that the EMI filter circuit include common mode inductance,
Differential mode inductance, the first differential mode capacitor, the second differential mode capacitor and first resistor；
One end of one end connection varistor of first differential mode capacitor and the 1st foot of common mode inductance, the first differential mode capacitor
The other end connects the other end of varistor and the 2nd foot of common mode inductance；3rd foot of common mode inductance connects the second differential mode capacitor
One end, rectifier bridge the 1st foot harmony seismoelectric road；4th foot of common mode inductance connects the another of the second differential mode capacitor by first resistor
One end, the 3rd foot of rectifier bridge and switch detection module；Differential mode inductance is in parallel with first resistor.
5. two-way Switching power according to claim 4, which is characterized in that the harmonic shock circuit include first diode,
First capacitor, the second capacitor, the first electrolytic capacitor and third capacitor；
One end, one end of third capacitor and the 2nd foot of rectifier bridge of the cathode connection first capacitor of the first diode；First
The anode connection other end of third capacitor, the cathode of the first electrolytic capacitor, driving circuit and the sample circuit of diode；Second electricity
One end of appearance connects one end of the second differential mode capacitor and the 1st foot of rectifier bridge, the other end connection first capacitor of the second capacitor
The other end and ground, the 4th foot and driving circuit of the anode connection rectifier bridge of the first electrolytic capacitor.
6. two-way Switching power according to claim 5, which is characterized in that the driving circuit include: the first triode,
Second triode, the first transformer, the second triode, third transistor, second resistance, 3rd resistor, the 4th capacitor, the 5th electricity
Hold and the 6th capacitor；
1st foot of first transformer connects the base stage of the first triode and one end of the 4th capacitor by second resistance；The
The 2nd foot connection the 3rd foot of the first transformer, the emitter of the first triode, the other end of the 4th capacitor and the of one transformer
The collector of two triodes；4th foot of the first transformer connects the anode of the second diode, the cathode of third diode, the 6th
One end of capacitor and output control circuit；5th foot of the first transformer connect the 6th foot of the first transformer, 3rd resistor one
It holds, the anode and sample circuit of first diode；7th foot of the first transformer and the 8th foot are all connected with output control circuit；First
The collector of triode connects the cathode and output control circuit of the anode of the first electrolytic capacitor, the second diode；Two or three pole
The other end of the base stage connection 3rd resistor of pipe and one end of the 5th capacitor；The emitter of second triode connects the 5th capacitor
The other end, the other end of the 6th capacitor, the first transformer the 5th foot and third diode anode.
7. two-way Switching power according to claim 6, which is characterized in that the output control circuit includes: driving core
Piece, chip inductance, the second transformer, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the four or two pole
Pipe, the 7th capacitor, the 8th capacitor, the 9th capacitor and the tenth capacitor；
One end of the chip inductance connects the cathode and anode of one end of the 4th resistance, the second diode；Chip inductance it is another
One end connects the anode of the 5th foot and the 4th diode of the second transformer, the 1st foot connection power end of the second transformer and driving
The CS foot of chip, the 6th foot to the 9th foot of the second transformer are all connected with switch detection module, TX1 foot, the TX2 foot pair of driving chip
The 7th foot, the 8th foot of the first transformer should be connected；The VDD foot of driving chip connects the other end of the 4th resistance, the 7th capacitor
One end, one end of the 5th resistance and the 6th resistance one end；The VFB foot of driving chip connects one end of the 7th resistance, the 8th electricity
One end of one end of resistance and the tenth capacitor；The other end of 5th resistance connect one end of the 8th capacitor, the 4th diode cathode,
The other end of 7th resistance and one end of the 9th capacitor；The other end of 7th capacitor, the other end of the 6th resistance, the 8th resistance
The other end of the other end, the other end of the 9th capacitor and the tenth capacitor is grounded.
8. two-way Switching power according to claim 7, which is characterized in that the switch detection module includes rectified current
Road, energy storage filter circuit and detection adjust circuit；
The rectification circuit rectifies square-wave signal, and energy storage filter circuit carries out energy storage filter to the square-wave signal after rectification
Wave；Detection adjusts circuit when detecting square-wave signal, switches the first LED light and the second LED light according to preset logical order
Light on and off state.
9. two-way Switching power according to claim 8, which is characterized in that the rectification circuit include the 5th diode and
6th diode；
9th foot of anode the second transformer of connection of the 5th diode；The cathode of 5th diode connects the 6th diode
Cathode, energy storage filter circuit and detection adjust circuit；6th foot of anode the second transformer of connection of the 6th diode.
10. a kind of lamp device, which is characterized in that including input switch, the first LED light, the second LED light and such as claim 1-
9 described in any item two-way Switching powers；
The input switch controls the output of alternating current according to open and-shut mode, and two-way Switching power is to alternating current harmonic shock filtering, generation side
Wave signal, according to the light on and off state of square-wave signal and preset logical order control the first LED light and the second LED light.
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| CN201910371603.5A CN110248440B (en) | 2019-05-06 | 2019-05-06 | Double-circuit switching power supply and lamp device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511078A (en) * | 2020-03-12 | 2020-08-07 | 深圳市海洋王照明工程有限公司 | Spotlight and floodlight switching control circuit and lamp |
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| CN110248440B (en) | 2021-10-19 |
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