CN105050262A - All-solid-state low-ripple LED lamp intelligent numerical control power supply - Google Patents
All-solid-state low-ripple LED lamp intelligent numerical control power supply Download PDFInfo
- Publication number
- CN105050262A CN105050262A CN201510407833.4A CN201510407833A CN105050262A CN 105050262 A CN105050262 A CN 105050262A CN 201510407833 A CN201510407833 A CN 201510407833A CN 105050262 A CN105050262 A CN 105050262A
- Authority
- CN
- China
- Prior art keywords
- diode
- electric capacity
- current
- current source
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The invention discloses an all-solid-state low-ripple LED lamp intelligent numerical control power supply which comprises a magnetic integrated transformer TR, an AC power source frequency-doubling voltage-doubling capacitor for pumping a DC current source to power primary windings of the magnetic integrated transformer TR, a single-chip microcomputer (MCU) for controlling APFC follow current of transferring an electronic power switch from switch-on to switch-off moment at twenty thousand/second to obtain a high-frequency DC current source for energy feedback of primary windings of the magnetic integrated transformer TR, an MCU starting circuit and a self-power supply circuit, a coupling output circuit for providing working current for an LED lamp and a ripple suppression circuit for suppressing current ripple. According to the invention, reliability of the power supply can be raised without an electrolytic capacitor, a DC current source replaces a commonly-used DC voltage source, and the power supply is suitable for input AC wide power supply to realize one-by-one pulse current accurate constant power control of real valley switching, raise electric power efficiency, prolong operating life and adjust light and color intelligently.
Description
Technical field
The invention belongs to LED power technology, particularly all solid state low ripple LED intelligent numerical control power supply.
Background technology
The competitiveness indicator of LED comprises: the premium ability of (1) famous brand; (2) light efficiency of LED intuitively distinguishes the old product of whether low light efficiency; (3) the unit price comparativity directly perceived of every kilolumen judges; (4) " guaranteeing more than 5 years " is bottom line of being shortlisted for, and durability long-life and price are linked up with; (5) whether digital intelligent controls, and comprises digital power, intelligent power, intelligent dimming, toning, intelligent protection etc.Intelligent DCPS digitally controlled power source is new direction in the ascendant.
At present, the short slab of the supporting power supply of LED is integrity problem, analytic statistics: 1/3rd of LED power failure rate, causes because electronic power switch damages, and wherein overcurrent damage ratio is greater than voltage breakdown damage; / 4th of a LED power failure rate is electrochemical capacitor blast or lost efficacy! And the disaster causing electronic power switch and rectifying tube to damage is stretched by this, and after electrochemical capacitor blast, electrolyte chemical pollutes; / 5th of a LED power failure rate is that lost efficacy as IC in vulnerabilities scan position or VCC lost efficacy or optocoupler lost efficacy; The reduction of general LED current ripple coefficient, stabilizes LED ripple with big capacity electrolyte capacitor in parallel entirely.But use electrochemical capacitor amount larger, the current stress of electronic power switch is just more dangerous.
Summary of the invention
The technical problem to be solved in the present invention is to provide one without electrochemical capacitor to promote reliability, realizing DC current source replaces conventional direct voltage source to power, adapt to input AC wide power, realize the accurate power limitation control of pulse current one by one of real the lowest point switch, promote electric work efficiency, extend all solid state low ripple LED intelligent numerical control power supply of working life.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
All solid state low ripple LED intelligent numerical control power supply, comprises magnetic integrated transformer TR, AC power frequency multiplication multiplication of voltage DC current source current supply circuit, single-chip microprocessor MCU start-up circuit and self-powered circuit, the excitatory power supply circuits in high-frequency direct-current electric current source, coupling output circuit and ripple and presses down ordinary telegram road;
Described magnetic integrated transformer TR comprises " day " shaped magnetic core post, armature winding N11 and armature winding N12 is respectively symmetrically around on two side columns of " day " shaped magnetic core post, center pillar winding ND and center pillar winding N2 is respectively around the center pillar two ends of " day " shaped magnetic core post, and additional winding N31 and additional winding N32 is respectively symmetrically around on two side columns of " day " shaped magnetic core post;
Described AC power frequency multiplication multiplication of voltage DC current source current supply circuit is used for obtaining frequency multiplication multiplication of voltage DC current source, power respectively to armature winding N11 and armature winding N12, comprise: AC power ~ Uin positive half wave, alternating current holds outflow from AC power ~ Uin positive polarity L, flow through diode D1, electric capacity C1 successively, get back to AC power ~ Uin negative polarity N to hold, obtain DC current source Q1 to electric capacity C1 charging; AC power ~ Uin bears half-wave, and alternating current holds outflow from AC power ~ Uin negative polarity N, flows through electric capacity C2, diode D2 successively, gets back to AC power ~ Uin positive polarity L and holds, and obtains DC current source Q2 to electric capacity C2 charging; Frequency multiplication multiplication of voltage DC current source is DC current source Q1 forward series direct current current source Q2, its current supply circuit is that direct current is flowed out by the positive pole of electric capacity C1, flow through armature winding N11, electronic power switch S, sample resistance rs, armature winding N12 successively, get back to the negative pole of electric capacity C2;
Described single-chip microprocessor MCU start-up circuit is used for starting single-chip microprocessor MCU before electronic power switch S does not work, comprise: described frequency multiplication multiplication of voltage DC current source bus connects the power pins VDD of single-chip microprocessor MCU successively through armature winding N11, starting resistance Rj, provide starting resistor to single-chip microprocessor MCU;
Described single-chip microprocessor MCU self-powered circuit is used for the operating voltage providing single-chip microprocessor MCU after single-chip microprocessor MCU drives electronic power switch S work, comprise: center pillar winding ND one end connects diode DD1 positive pole and diode DD2 negative pole respectively, diode DD1 negative pole connects the power pins VDD of electric capacity CD1 one end and single-chip microprocessor MCU simultaneously, and the electric capacity CD1 other end connects electric capacity CD2 one end and the center pillar winding ND other end simultaneously; The electric capacity CD2 other end connects the grounding pin GND of diode DD2 positive pole and single-chip microprocessor MCU simultaneously; Voltage-stabiliser tube DZ positive pole and negative pole are connected power pins VDD and the grounding pin GND of single-chip microprocessor MCU respectively; Electric capacity CD is in parallel with voltage-stabiliser tube DZ;
The excitatory power supply circuits in described high-frequency direct-current electric current source are used for powering to armature winding N11 and armature winding N12 energy regenerative, comprise: single-chip microprocessor MCU controls electronic power switch S with high-frequency switch APFC afterflow, electric current is successively through electric capacity CV1, diode DV, electric capacity CV2, charge to electric capacity CV1 and electric capacity CV2, make electric capacity CV1 obtain high-frequency direct-current electric current source QCV1, electric capacity CV2 obtains high-frequency direct-current electric current source QCV2; When single-chip microprocessor MCU controls electronic power switch S conducting, the electric energy of high-frequency direct-current electric current source QCV1 flows out from electric capacity CV1 one end, flow through electronic power switch S, sample resistance rs successively, armature winding N12, energy regenerative diode DF1 get back to the electric capacity CV1 other end, the electric energy energy regenerative armature winding N12 of high-frequency direct-current electric current source QCV1 is converted into magnetic energy; The electric energy of high-frequency direct-current electric current source QCV2 flows out from electric capacity CV2 one end, flow through energy regenerative diode DF2, armature winding N11, electronic power switch S, sample resistance rs successively, get back to the electric capacity CV2 other end, the electric energy energy regenerative armature winding N11 of high-frequency direct-current electric current source QCV2 is converted into magnetic energy;
Described coupling output circuit is used for providing LED operating current, comprise: one end of center pillar winding N2 connects one end of energy storage capacitor C01 and one end of energy storage capacitor C02 simultaneously, the other end of center pillar winding N2 connects the positive pole of rectifier diode D01 and the negative pole of rectifier diode D02 simultaneously, the other end of energy storage capacitor C01 is all connected the positive terminal of load LED lamp with the negative pole of rectifier diode D01, and the other end of energy storage capacitor C02 is all connected the negative pole end of load LED lamp with the positive pole of rectifier diode D02; The two ends also RC parallel filtering circuit in parallel of load LED lamp;
Described ripple presses down ordinary telegram road and is used for stabilizing current ripples, comprise: one end of additional winding N31 connects the positive pole of diode D311 and the negative pole of diode D312 after tuning coil L31 simultaneously, the other end connects one end of additional winding N32 and the tie point simultaneously between connection energy storage capacitor C01 and energy storage capacitor C02, the other end of additional winding N32 connects the positive pole of diode D321 and the negative pole of diode D322 after tuning coil L32 simultaneously, the negative pole of diode D311 is all connected the positive terminal of load LED lamp with the negative pole of diode D321, the positive pole of diode D312 is all connected the negative pole end of load LED lamp with the positive pole of diode D322.
Also comprise duty ratio circuit for regulating and controlling: the On current of electronic power switch S to the CS pin of single-chip microprocessor MCU, is regulated and controled the duty ratio of electronic power switch S conducting each time through sampling resistor rs negative feedback by single-chip microprocessor MCU.
The I/O mouth of described single-chip microcomputer also connects intelligent dimming toning chip.
Described AC power ~ Uin two ends are protection electric capacity Cx and resistance Rv in parallel respectively.
Electric capacity all in described power supply does not all use electrochemical capacitor.
Described diode DD1, diode DD2, diode D311, diode D312, diode D321, diode D322, rectifier diode D01 and rectifier diode D02 model are 1N4148.
Remarkable advantage of the present invention is:
(1), by R-C-D braking absorption switching surge, there is the problems such as heating, loss, EMC level height in traditional multiplex inverse-excitation type of Single switch circuit.Electric capacity C1 of the present invention and electric capacity C2 is as current limiting element, alternating-current voltage source ~ Uin is converted into multiplication of voltage current source, power supply is to armature winding N11 and N12, when MCU controls electronic power switch S conducting, because inductive current can not suddenly change, so electronic power switch S is the Sofe Switch ZCS topology of " zero current passing ".When electronic power switch S conducting, the electric energy of electric capacity CV1 and CV2 through the whole discharge off of the excitatory power supply circuits of source of high frequency current, so when electronic power switch S conducting transfers moment of cut-off to, be the ZVS Sofe Switch of " no-voltage cut-off ".Conclusion: electronic power switch S is ZCZS Sofe Switch, reclaims surge spike, reduces switching loss, improves electric work efficiency.
(2) traditional power electronics power supply is that bridge rectifier obtains direct voltage source and powers, power supply AC power full wave doubler multiplication of voltage of the present invention obtains DC current source and powers, coordinate the electronic power switch S regulation and control APFC process being transferred to cut-off moment for 20,000 times by conducting per second, inductance freewheel current obtains 20,000 high frequency capacitance pump CV1 and CV2 per second with the excitatory power supply in high-frequency direct-current electric current source, promotes power supply reliability.
(3) power supply of the present invention makes electronic power switch S work in real the lowest point switch by single-chip microprocessor MCU by sample resistance rs monitoring, there is the highest electric work efficiency, realize the accurate power limitation control of pulse current one by one of real the lowest point switch, constant current and constant power intellectualized LED lamp is realized under global wide power 50HZ/60HZ, 100Vac to 280Vac range of condition can be adapted to.
(3) starting resistance Rj can get very large resistance value, before electronic power switch S works, and supply MCU starting current; After electronic power switch S works, starting resistance Rj is just inoperative, and the induction alternating current that center pillar winding ND obtains, to single-chip microprocessor MCU self-powered, is still current source supply, promotes power supply reliability of the present invention.
(4) power supply of the present invention is All-solid state power supply, and all electric capacity does not all use electrochemical capacitor, realizes more than the 50000 hours life-spans of reliability to mate with the LED long-life.
(5) additional winding N31 and N32 tuning coil L31 and L32 is utilized, wiping respectively with electric capacity C01, C02 shakes in harmonic frequency, and harmful harmonic energy is reclaimed, and is converted into the positive energy pressing down flat LED current harmonic wave, both promote electric work power, again reduce THD and EMI.Facts have proved, magnetic integrated approach of the present invention is the effective ways of degraded AC power ~ Uin zero passage stroboscopic and the flicker of LED current ripple.
(6) single-chip microprocessor MCU coupling intelligent dimming toning chip, by means of the programming of MCU, realizes intelligent dimming toning.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the present invention's all solid state low ripple LED intelligent numerical control power supply;
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described, but does not form limiting the scope of the invention.
As shown in Figure 1.All solid state low ripple LED intelligent numerical control power supply, comprises magnetic integrated transformer TR, AC power frequency multiplication multiplication of voltage DC current source current supply circuit, single-chip microprocessor MCU start-up circuit and self-powered circuit, the excitatory power supply circuits in high-frequency direct-current electric current source, coupling output circuit and ripple and presses down ordinary telegram road;
Described magnetic integrated transformer TR comprises " day " shaped magnetic core post, armature winding N11 and armature winding N12 is respectively symmetrically around on two side columns of " day " shaped magnetic core post, center pillar winding ND and center pillar winding N2 is respectively around the center pillar two ends of " day " shaped magnetic core post, and additional winding N31 and additional winding N32 is respectively symmetrically around on two side columns of " day " shaped magnetic core post;
Described AC power frequency multiplication multiplication of voltage DC current source current supply circuit is used for obtaining frequency multiplication multiplication of voltage DC current source, power respectively to armature winding N11 and armature winding N12, comprise: AC power ~ Uin positive half wave, alternating current holds outflow from AC power ~ Uin positive polarity L, flow through diode D1, electric capacity C1 successively, get back to AC power ~ Uin negative polarity N to hold, obtain DC current source Q1 to electric capacity C1 charging; AC power ~ Uin bears half-wave, and alternating current holds outflow from AC power ~ Uin negative polarity N, flows through electric capacity C2, diode D2 successively, gets back to AC power ~ Uin positive polarity L and holds, and obtains DC current source Q2 to electric capacity C2 charging; Frequency multiplication multiplication of voltage DC current source is DC current source Q1 forward series direct current current source Q2, its current supply circuit is that direct current is flowed out by the positive pole of electric capacity C1, flow through armature winding N11, electronic power switch S, sample resistance rs, armature winding N12 successively, get back to the negative pole of electric capacity C2; Select the capacitance size of electric capacity C1 and electric capacity C2, the size of predeterminable DC current source Q1 and DC current source Q2, with electric capacity C1 and electric capacity C2 as current limiting element, except noncapacitive puncture short, otherwise can not cause AC power ~ Uin to be shorted.Electric capacity C1 and electric capacity C2, all without electrochemical capacitor, powers by AC power frequency multiplication multiplication of voltage DC current source, and Here it is promotes one of measure of power supply reliability of the present invention.
Described single-chip microprocessor MCU start-up circuit is for starting single-chip microprocessor MCU, before electronic power switch S does not work, DC current source bus connects the power pins VDD of single-chip microprocessor MCU successively through armature winding N11, starting resistance Rj, provide startup power supply, MCU is started to single-chip microprocessor MCU;
Described single-chip microprocessor MCU start-up circuit is used for starting single-chip microprocessor MCU before electronic power switch S does not work, comprise: described frequency multiplication multiplication of voltage DC current source bus connects the power pins VDD of single-chip microprocessor MCU successively through armature winding N11, starting resistance Rj, provide starting resistor to single-chip microprocessor MCU;
Described single-chip microprocessor MCU self-powered circuit is used for the operating voltage providing single-chip microprocessor MCU after single-chip microprocessor MCU drives electronic power switch S work, comprise: center pillar winding ND one end connects diode DD1 positive pole and diode DD2 negative pole respectively, diode DD1 negative pole connects the power pins VDD of electric capacity CD1 one end and single-chip microprocessor MCU simultaneously, and the electric capacity CD1 other end connects electric capacity CD2 one end and the center pillar winding ND other end simultaneously; The electric capacity CD2 other end connects the grounding pin GND of diode DD2 positive pole and single-chip microprocessor MCU simultaneously; Voltage-stabiliser tube DZ positive pole and negative pole are connected power pins VDD and the grounding pin GND of single-chip microprocessor MCU respectively; Electric capacity CD is in parallel with voltage-stabiliser tube DZ; After single-chip microprocessor MCU drives electronic power switch S work, center pillar winding ND obtains responding to alternating current, and the power pins VDD to single-chip microprocessor MCU provides stabilized voltage power supply, replaces the effect of the resistance Rj of high power consumption poor efficiency.Electric capacity CD1, electric capacity CD2, electric capacity CD are all without electrochemical capacitor, and Here it is promotes the measure two of power supply reliability of the present invention.
The excitatory power supply circuits in described high-frequency direct-current electric current source are used for powering to armature winding N11 and armature winding N12 energy regenerative, comprise: single-chip microprocessor MCU controls electronic power switch S with high-frequency switch APFC afterflow, electric current is successively through electric capacity CV1, diode DV, electric capacity CV2, charge to electric capacity CV1 and electric capacity CV2, make that electric capacity CV1 obtains high-frequency direct-current electric current source QCV1, electric capacity CV2 obtains high-frequency direct-current electric current source QCV2; When single-chip microprocessor MCU controls electronic power switch S conducting, the electric energy of high-frequency direct-current electric current source QCV1 flows out from electric capacity CV1 one end, flow through electronic power switch S, sample resistance rs successively, armature winding N12, energy regenerative diode DF1 get back to the electric capacity CV1 other end, the electric energy energy regenerative armature winding N12 of high-frequency direct-current electric current source QCV1 is converted into magnetic energy; The electric energy of high-frequency direct-current electric current source QCV2 flows out from electric capacity CV2 one end, flow through energy regenerative diode DF2, armature winding N11, electronic power switch S, sample resistance rs successively, get back to the electric capacity CV2 other end, the electric energy energy regenerative armature winding N11 of high-frequency direct-current electric current source QCV2 is converted into magnetic energy; Single-chip Controlling electronic power switch S transfers the APFC afterflow of cut-off moment with 20,000 times per second to by conducting and obtains 20,000 high frequency capacitance pump CV1 and CV2 per second, electric capacity CV1 and electric capacity CV2 is with 20,000 excitatory power supplies of source of high frequency current per second, and Here it is promotes the measure three of power supply reliability of the present invention.
Described coupling output circuit is used for providing LED operating current, comprise: one end of center pillar winding N2 connects one end of energy storage capacitor C01 and one end of energy storage capacitor C02 simultaneously, the other end of center pillar winding N2 connects the positive pole of rectifier diode D01 and the negative pole of rectifier diode D02 simultaneously, the other end of energy storage capacitor C01 is all connected the positive terminal of load LED lamp with the negative pole of rectifier diode D01, and the other end of energy storage capacitor C02 is all connected the negative pole end of load LED lamp with the positive pole of rectifier diode D02; The two ends also RC parallel filtering circuit in parallel of load LED lamp; Center pillar winding N2 and electric capacity C01, electric capacity C02 and diode D01, diode D02 form full-wave voltage doubler, so the ripple frequency with the current source that " frequency multiplication effect " makes center pillar winding N2 provide is the twice of electronic power switch S operating frequency, i.e. 40,000 hertz of high frequency ripple per second, so, electric capacity C0 need not use the electrochemical capacitor of high capacitance, uses solid capacitor just can realize low ripple.
Described ripple presses down ordinary telegram road and is used for stabilizing current ripples, comprise: one end of additional winding N31 connects the positive pole of diode D311 and the negative pole of diode D312 after tuning coil L31 simultaneously, the other end connects one end of additional winding N32 and the tie point simultaneously between connection energy storage capacitor C01 and energy storage capacitor C02, the other end of additional winding N32 connects the positive pole of diode D321 and the negative pole of diode D322 after tuning coil L32 simultaneously, the negative pole of diode D311 is all connected the positive terminal of load LED lamp with the negative pole of diode D321, the positive pole of diode D312 is all connected the negative pole end of load LED lamp with the positive pole of diode D322.Ripple presses down ordinary telegram road and harmful harmonic energy is converted into the positive energy pressing down flat LED ripple, turns harm into good, improves electric work efficiency.
Also comprise duty ratio circuit for regulating and controlling: the On current of electronic power switch S to the CS pin of single-chip microprocessor MCU, is regulated and controled the duty ratio D of electronic power switch S conducting each time through sampling resistor rs negative feedback by single-chip microprocessor MCU.
The I/O mouth of described single-chip microcomputer also connects intelligent dimming chip.
Described AC power ~ Uin two ends are protection electric capacity CX and resistance RV in parallel respectively.
The electric capacity C0 of described electric capacity C1, electric capacity C2, electric capacity Cx, electric capacity CD1, electric capacity CD2, electric capacity CD, electric capacity CV1, electric capacity CV2 and described RC parallel filtering circuit does not all use electrochemical capacitor, makes power supply of the present invention become all solid state, promotes reliability.
Described diode DD1, diode DD2, diode D311, diode D312, diode D321, diode D322, rectifier diode D01 and rectifier diode D02 model are 1N4148.
Further, power supply single-chip microprocessor MCU coupling intelligent protection transducer of the present invention, realizes various abnormal protection and can point out the particular location that breaks down, in order to rapid reparation; By means of the programming of single-chip microprocessor MCU, can timing dimming, reach " the secondary energy-saving effect " on LED specular removal; By means of single-chip microprocessor MCU light modulation toning, obtain suitable artistic light atmosphere; Single-chip microprocessor MCU coupling power line carrier chip, can realize network remote control light modulation toning intelligentized control method; Single-chip microprocessor MCU coupling radio chip, can realize wireless remotecontrol light modulation toning intelligentized control method.
Claims (6)
1. all solid state low ripple LED intelligent numerical control power supply, it is characterized in that, comprise magnetic integrated transformer TR, AC power frequency multiplication multiplication of voltage DC current source current supply circuit, single-chip microprocessor MCU start-up circuit and self-powered circuit, the excitatory power supply circuits in high-frequency direct-current electric current source, coupling output circuit and ripple and press down ordinary telegram road;
Described magnetic integrated transformer TR comprises " day " shaped magnetic core post, armature winding N11 and armature winding N12 is respectively symmetrically around on two side columns of " day " shaped magnetic core post, center pillar winding ND and center pillar winding N2 is respectively around the center pillar two ends of " day " shaped magnetic core post, and additional winding N31 and additional winding N32 is respectively symmetrically around on two side columns of " day " shaped magnetic core post;
Described AC power frequency multiplication multiplication of voltage DC current source current supply circuit is used for obtaining frequency multiplication multiplication of voltage DC current source, power respectively to armature winding N11 and armature winding N12, comprise: AC power ~ Uin positive half wave, alternating current holds outflow from AC power ~ Uin positive polarity L, flow through diode D1, electric capacity C1 successively, get back to AC power ~ Uin negative polarity N to hold, obtain DC current source Q1 to electric capacity C1 charging; AC power ~ Uin bears half-wave, and alternating current holds outflow from AC power ~ Uin negative polarity N, flows through electric capacity C2, diode D2 successively, gets back to AC power ~ Uin positive polarity L and holds, and obtains DC current source Q2 to electric capacity C2 charging; Frequency multiplication multiplication of voltage DC current source is DC current source Q1 forward series direct current current source Q2, its current supply circuit is that direct current is flowed out by the positive pole of electric capacity C1, flow through armature winding N11, electronic power switch S, sample resistance rs, armature winding N12 successively, get back to the negative pole of electric capacity C2;
Described single-chip microprocessor MCU start-up circuit is used for starting single-chip microprocessor MCU before electronic power switch S does not work, comprise: described frequency multiplication multiplication of voltage DC current source bus connects the power pins VDD of single-chip microprocessor MCU successively through armature winding N11, starting resistance Rj, provide starting resistor to single-chip microprocessor MCU;
Described single-chip microprocessor MCU self-powered circuit is used for the operating voltage providing single-chip microprocessor MCU after single-chip microprocessor MCU drives electronic power switch S work, comprise: center pillar winding ND one end connects diode DD1 positive pole and diode DD2 negative pole respectively, diode DD1 negative pole connects the power pins VDD of electric capacity CD1 one end and single-chip microprocessor MCU simultaneously, and the electric capacity CD1 other end connects electric capacity CD2 one end and the center pillar winding ND other end simultaneously; The electric capacity CD2 other end connects the grounding pin GND of diode DD2 positive pole and single-chip microprocessor MCU simultaneously; Voltage-stabiliser tube DZ positive pole and negative pole are connected power pins VDD and the grounding pin GND of single-chip microprocessor MCU respectively; Electric capacity CD is in parallel with voltage-stabiliser tube DZ;
The excitatory power supply circuits in described high-frequency direct-current electric current source are used for powering to armature winding N11 and armature winding N12 energy regenerative, comprise: single-chip microprocessor MCU controls electronic power switch S with high-frequency switch APFC afterflow, electric current is successively through electric capacity CV1, diode DV, electric capacity CV2, charge to electric capacity CV1 and electric capacity CV2, make that electric capacity CV1 obtains high-frequency direct-current electric current source QCV1, electric capacity CV2 obtains high-frequency direct-current electric current source QCV2; When single-chip microprocessor MCU controls electronic power switch S conducting, the electric energy of high-frequency direct-current electric current source QCV1 flows out from electric capacity CV1 one end, flow through electronic power switch S, sample resistance rs successively, armature winding N12, energy regenerative diode DF1 get back to the electric capacity CV1 other end, the electric energy energy regenerative armature winding N12 of high-frequency direct-current electric current source QCV1 is converted into magnetic energy; The electric energy of high-frequency direct-current electric current source QCV2 flows out from electric capacity CV2 one end, flow through energy regenerative diode DF2, armature winding N11, electronic power switch S, sample resistance rs successively, get back to the electric capacity CV2 other end, the electric energy energy regenerative armature winding N11 of high-frequency direct-current electric current source QCV2 is converted into magnetic energy;
Described coupling output circuit is used for providing LED operating current, comprise: one end of center pillar winding N2 connects one end of energy storage capacitor C01 and one end of energy storage capacitor C02 simultaneously, the other end of center pillar winding N2 connects the positive pole of rectifier diode D01 and the negative pole of rectifier diode D02 simultaneously, the other end of energy storage capacitor C01 is all connected the positive terminal of load LED lamp with the negative pole of rectifier diode D01, and the other end of energy storage capacitor C02 is all connected the negative pole end of load LED lamp with the positive pole of rectifier diode D02; The two ends also RC parallel filtering circuit in parallel of load LED lamp;
Described ripple presses down ordinary telegram road and is used for stabilizing current ripples, comprise: one end of additional winding N31 connects the positive pole of diode D311 and the negative pole of diode D312 after tuning coil L31 simultaneously, the other end connects one end of additional winding N32 and the tie point simultaneously between connection energy storage capacitor C01 and energy storage capacitor C02, the other end of additional winding N32 connects the positive pole of diode D321 and the negative pole of diode D322 after tuning coil L32 simultaneously, the negative pole of diode D311 is all connected the positive terminal of load LED lamp with the negative pole of diode D321, the positive pole of diode D312 is all connected the negative pole end of load LED lamp with the positive pole of diode D322.
2. all solid state low ripple LED intelligent numerical control power supply as claimed in claim 1, it is characterized in that, also comprise duty ratio circuit for regulating and controlling: the On current of electronic power switch S to the CS pin of single-chip microprocessor MCU, is regulated and controled the duty ratio of electronic power switch S conducting each time through sampling resistor rs negative feedback by single-chip microprocessor MCU.
3. all solid state low ripple LED intelligent numerical control power supply as claimed in claim 1, is characterized in that, the I/O mouth of described single-chip microcomputer also connects intelligent dimming toning chip.
4. all solid state low ripple LED intelligent numerical control power supply as claimed in claim 1, is characterized in that, described AC power ~ Uin two ends are protection electric capacity Cx and resistance Rv in parallel respectively.
5. all solid state low ripple LED intelligent numerical control power supply as claimed in claim 1, it is characterized in that, electric capacity all in described power supply does not all use electrochemical capacitor.
6. all solid state low ripple LED intelligent numerical control power supply as described in one of claim 1-5, it is characterized in that, described diode DD1, diode DD2, diode D311, diode D312, diode D321, diode D322, rectifier diode D01 and rectifier diode D02 model are 1N4148.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407833.4A CN105050262A (en) | 2015-07-13 | 2015-07-13 | All-solid-state low-ripple LED lamp intelligent numerical control power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407833.4A CN105050262A (en) | 2015-07-13 | 2015-07-13 | All-solid-state low-ripple LED lamp intelligent numerical control power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105050262A true CN105050262A (en) | 2015-11-11 |
Family
ID=54456327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407833.4A Pending CN105050262A (en) | 2015-07-13 | 2015-07-13 | All-solid-state low-ripple LED lamp intelligent numerical control power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105050262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811230A (en) * | 2017-05-05 | 2018-11-13 | 朗德万斯公司 | LED light for the lamp driver of LED light and for being arranged in florescent lamp fitting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110429A1 (en) * | 2003-11-10 | 2005-05-26 | Poon Franki Ngai K. | Dimmable ballast with resistive input and low electromagnetic interference |
| CN104284480A (en) * | 2014-08-26 | 2015-01-14 | 上海占空比电子科技有限公司 | Isolated type bridgeless electrolytic-capacitor-free low-ripple-wave constant-current power supply of LED lamp |
| CN104284481A (en) * | 2014-08-26 | 2015-01-14 | 上海占空比电子科技有限公司 | Bridgeless electrolytic-capacitor-free low-ripple-wave high-power constant-current power supply of LED lamp |
| CN104994652A (en) * | 2015-07-11 | 2015-10-21 | 深圳创智慧能电子科技有限公司 | Intelligent digital control circuit of no-electrolytic-capacitor low-ripple LED driving power supply |
| CN204795770U (en) * | 2015-07-11 | 2015-11-18 | 深圳创智慧能电子科技有限公司 | Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit |
-
2015
- 2015-07-13 CN CN201510407833.4A patent/CN105050262A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110429A1 (en) * | 2003-11-10 | 2005-05-26 | Poon Franki Ngai K. | Dimmable ballast with resistive input and low electromagnetic interference |
| CN104284480A (en) * | 2014-08-26 | 2015-01-14 | 上海占空比电子科技有限公司 | Isolated type bridgeless electrolytic-capacitor-free low-ripple-wave constant-current power supply of LED lamp |
| CN104284481A (en) * | 2014-08-26 | 2015-01-14 | 上海占空比电子科技有限公司 | Bridgeless electrolytic-capacitor-free low-ripple-wave high-power constant-current power supply of LED lamp |
| CN104994652A (en) * | 2015-07-11 | 2015-10-21 | 深圳创智慧能电子科技有限公司 | Intelligent digital control circuit of no-electrolytic-capacitor low-ripple LED driving power supply |
| CN204795770U (en) * | 2015-07-11 | 2015-11-18 | 深圳创智慧能电子科技有限公司 | Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811230A (en) * | 2017-05-05 | 2018-11-13 | 朗德万斯公司 | LED light for the lamp driver of LED light and for being arranged in florescent lamp fitting |
| CN108811230B (en) * | 2017-05-05 | 2021-11-30 | 朗德万斯公司 | Lamp driver for an LED lamp and LED lamp for arrangement in a fluorescent lamp fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103327694B (en) | Silicon controlled dimming LED drive circuit | |
| CN103917028B (en) | A kind of LED constant current source and control method thereof | |
| CN105792421B (en) | A kind of no bridge type LED drive power | |
| CN203313500U (en) | Silicon controlled dimming LED driving circuit | |
| CN104284481B (en) | The low ripple high-powered LED lamp constant current source of no electrolytic capacitor without bridge | |
| CN201869103U (en) | Variable-voltage power supply | |
| CN205160832U (en) | LED drive power supply of compatible traditional fluorescent tube ballast | |
| CN102781147B (en) | LED (Light-emitting diode) power supply circuit with high power factor | |
| CN203618173U (en) | LED lamp driving power based on primary side feedback | |
| WO2016050084A1 (en) | Led drive circuit and electronic device | |
| CN202385338U (en) | LED drive power supply | |
| CN202276293U (en) | An intelligent switch power source with constant output power | |
| CN105576840A (en) | Self-induction electricity taking circuit for smart power grid sensing device | |
| CN202841608U (en) | LED power supply circuit possessing high power factor | |
| CN105050262A (en) | All-solid-state low-ripple LED lamp intelligent numerical control power supply | |
| CN204795770U (en) | Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit | |
| CN203504839U (en) | LED lamp driving power supply adopting primary detection and regulation | |
| CN203243579U (en) | Low-cost LED lamp drive power source | |
| CN205336139U (en) | Adopt intelligence to transfer widely and technological power supply of frequency modulation | |
| CN205005320U (en) | Driving circuit of light -emitting diode (LED) fluorescent tube | |
| CN104994652B (en) | The intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power | |
| CN203340371U (en) | Low-power LED lamp driving power supply | |
| CN203340372U (en) | LED lamp driving power supply employing analog dimming | |
| CN207368895U (en) | rectification circuit and switching power supply | |
| CN203645889U (en) | LED lamp driving power supply adopting PFC functional chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |