CN204795770U - Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit - Google Patents
Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit Download PDFInfo
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- CN204795770U CN204795770U CN201520497265.7U CN201520497265U CN204795770U CN 204795770 U CN204795770 U CN 204795770U CN 201520497265 U CN201520497265 U CN 201520497265U CN 204795770 U CN204795770 U CN 204795770U
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- 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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model provides a low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit, includes that all -wave voltage multiplying rectifier input circuit, high -frequency oscillating circuits, MCU, signal of telecommunication sampling circuit, magnetic core post, ripple press down ordinary telegram way and all -wave voltage multiplying rectifier output circuit, all -wave voltage multiplying rectifier input circuit and high -frequency oscillating circuits electric connection, MCU's signal output part and high -frequency oscillating circuits's switch circuit's control end electric connection, signal of telecommunication sampling circuit and MCU electric connection, signal of telecommunication sampling circuit provides electric energy and sampled singal for MCU, and the ripple presses down the ordinary telegram way and all -wave voltage multiplying rectifier high -frequency oscillating circuits 0 carries the lamp for load LED with rectification, the post -filter signal of telecommunication. The utility model discloses owing to do not adopt electrolytic capacitor, increased the life of intelligent digital control circuit, make it match with the life -span of load LED lamp, have the electrician efficient, do not use electrolytic capacitor and improve the reliability, the electric current ripple is little and life advantage such as long.
Description
Technical field
The utility model relates to the technical field of LED drive power, especially relates to a kind of intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power.
Background technology
On April 3rd, 2014, section of the U.S. sharp (CREE) company discloses the LED specular removal new record of every watt of 303 lumens.China's " senior engineer LED " 10 monthly magazines in 2014 the 32nd page of report, Chinese ten thousand nation's photoelectricity independent intellectual property right closed modes innovate the LED light source of more than every watt of 280 lumens.Among global numerous enterprises struggle, the light efficiency of LED is just rising year by year about 10, has surmounted existing known various light source.But because LED has tens thousand of hours life, the therefore long-life of market active demand and LED adaptation, the LED drive power of high reliability.
In the prior art, cause the reason of existing LED drive power cisco unity malfunction, a part causes because electronic power switch damages, as overcurrent damage and overvoltage are damaged.Some is because existing LED drive power have employed big capacity electrolyte capacitor, although big capacity electrolyte capacitor can stabilize LED current ripple, electrochemical capacitor is easily blasted or lost efficacy.And the electrochemical capacitor amount used is larger, LED drive power is more dangerous, and the useful life of LED drive power is also shorter, and existing LED drive power also have electrician's efficiency low with reliability the problem such as undesirable.
Utility model content
In order to overcome the problems referred to above, the utility model to society provide a kind of electrician's efficiency high, do not use electrochemical capacitor and improve reliability, the intelligent digital control circuit of constant current accuracy is high, current ripples is little no electrolytic capacitor low ripple LED drive power.
The technical solution of the utility model is: the intelligent digital control circuit providing a kind of no electrolytic capacitor low ripple LED drive power, comprises full wave and voltage doubling rectification input circuit, high-frequency oscillating circuits, MCU, signal of telecommunication sample circuit, the core post of one-tenth " day " font, ripple press down ordinary telegram road and full wave and voltage doubling rectifying output circuit; The armature winding N11 of described high-frequency oscillating circuits and armature winding N12 is respectively around on two side columns of described core post, described ripple presses down the additional winding N31 on ordinary telegram road and additional winding N32 respectively around on the position of two corresponding described armature winding N11 and described armature winding N12 of described side column, and the winding ND of described signal of telecommunication sample circuit and the secondary winding N2 of described full wave and voltage doubling rectifying output circuit is respectively accordingly around on the center pillar of described core post;
Described full wave and voltage doubling rectification input circuit and described high-frequency oscillating circuits are electrically connected, the control end of the signal output part of described MCU and the switching circuit of described high-frequency oscillating circuits is electrically connected, described signal of telecommunication sample circuit and described MCU are electrically connected, described signal of telecommunication sample circuit provides electric energy and sampled signal for described MCU, described switching circuit controls the duty ratio of the signal of telecommunication in described high-frequency oscillating circuits, and described ripple presses down ordinary telegram road and the signal of telecommunication after rectification, filtering is flowed to load LED lamp by described full wave and voltage doubling rectifying output circuit.
As to improvement of the present utility model, described full wave and voltage doubling rectification input circuit comprises AC power UIN, diode D1, diode D2, electric capacity C1 and electric capacity C2, the L end of described AC power UIN is electrically connected with the positive pole of described diode D1, the negative pole of described diode D2 respectively, and the N end of described AC power UIN is electrically connected with the negative pole of described diode D1, the positive pole of described diode D2 respectively by described electric capacity C1, described electric capacity C2.
As to improvement of the present utility model, described high-frequency oscillating circuits comprises diode DF2, diode DF1, diode DV, electric capacity CV1, electric capacity CV2, described switching circuit, described armature winding N11 and described armature winding N12, the negative pole of described diode D1 is electrically connected with one end of described armature winding N11 and the negative pole of described diode DF2 respectively, the other end of described armature winding N11 is electrically connected by one end of described switching circuit and described armature winding N12, and the other end of described armature winding N12 and the positive pole of described diode D2 are electrically connected; The positive pole of described diode DF1 and the positive pole of described diode D2 are electrically connected, the negative pole of described diode DF1 is electrically connected with one end of described electric capacity CV1 and the positive pole of described diode DV respectively, the other end of described electric capacity CV1 and the other end of described armature winding N11 are electrically connected, and the negative pole of described diode DV and the positive pole of described diode DF2 are electrically connected respectively by one end of described electric capacity CV2 and described armature winding N12.
As to improvement of the present utility model, described switching circuit is soft switch circuit.
As to improvement of the present utility model, also comprise resistance RS, described switching circuit is electrically connected by one end of described resistance RS and described armature winding N12, and the CS tie point of described MCU and the circuit between described switching circuit and described resistance RS are electrically connected.
As to improvement of the present utility model, described signal of telecommunication sample circuit comprises described winding ND, diode DD1, diode DD2, voltage stabilizing didoe DZ, electric capacity CD1, electric capacity CD2, electric capacity CD, the vdd terminal of resistance RN and resistance RJ, described MCU respectively with one end of described electric capacity CD, the negative pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD1, one end of the negative pole of described diode DD1 and described resistance RJ is electrically connected, and the other end of described resistance RJ and the other end of described armature winding N11 are electrically connected, the GND of described MCU hold respectively with the other end of described electric capacity CD, the positive pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD2 and the positive pole of described diode DD2 are electrically connected, the other end of described electric capacity CD1 and the other end of described electric capacity CD2 are electrically connected with the other end of described winding ND respectively, the positive pole of described diode DD1 and the negative pole of described diode DD2 are electrically connected with one end of described winding ND respectively, the VSEN end of described MCU is electrically connected by the negative pole of described resistance RN and described diode DD1, and the GND end of described MCU is electrically connected with one end of described armature winding N12.
As to improvement of the present utility model, described full wave and voltage doubling rectifying output circuit comprises secondary winding N2, diode D01, diode D02, electric capacity C01, electric capacity C02, electric capacity C0 and resistance R0, one end of described secondary winding N2 is electrically connected with one end of described electric capacity C01 and one end of described electric capacity C02 respectively, the other end of described secondary winding N2 is electrically connected with the positive pole of described diode D01 and the negative pole of described diode D02 respectively, the other end of described electric capacity C01, the negative pole of described diode D01 and one end of described electric capacity C0 and one end of load LED lamp are electrically connected, the other end of described electric capacity C02, the positive pole of described diode D02 and the other end of described electric capacity C0 and the other end of load LED lamp are electrically connected, described resistance R0 is in parallel with described electric capacity C0.
As to improvement of the present utility model, described ripple presses down ordinary telegram road and comprises described additional winding N31, described additional winding N32, inductance L 31, inductance L 32, diode D311, diode D321, diode D312 and diode D322, and one end of described additional winding N31 is electrically connected with the positive pole of described diode D311, the negative pole of described diode D312 respectively by described inductance L 31; The other end of described additional winding N31 and one end of described additional winding N32 are electrically connected, and the other end of described additional winding N32 is electrically connected with the positive pole of described diode D321, the negative pole of described diode D322 respectively by described inductance L 32; The negative pole of described diode D311 and the negative pole of described diode D321 and one end of load LED lamp are electrically connected, and the positive pole of described diode D312 and the positive pole of described diode D322 and the other end of load LED lamp are electrically connected.
As to improvement of the present utility model, also comprise light modulation toning circuit, described light modulation toning circuit and described MCU are electrically connected.
As to improvement of the present utility model, also comprise protective circuit, described protective circuit and described MCU are electrically connected.
The utility model due to have employed full wave and voltage doubling rectification input circuit, high-frequency oscillating circuits, MCU, signal of telecommunication sample circuit, core post, ripple press down ordinary telegram road and full wave and voltage doubling rectifying output circuit; Full wave and voltage doubling rectification input circuit improves electric work efficiency, and the switching circuit of high-frequency oscillating circuits have employed soft switch circuit, make the current stress of switching circuit and voltage stress lower, reduce the loss of switching circuit; Owing to not adopting electrochemical capacitor, add the useful life of intelligent digital control circuit, make it can mate with the life-span of load LED lamp, the switching frequency of MCU control switch circuit, achieve constant current and constant power to export, and harmonic energy that ordinary telegram road will be harmful reclaims to utilize ripple to press down, and is converted into the positive energy pressing down plain weave ripple, have electrician's efficiency high, do not use electrochemical capacitor and improve reliability, constant current accuracy is high, current ripples is little and the advantage such as long service life.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present utility model.
Wherein: 1.MCU; 2. switching circuit; 3. light modulation toning circuit; 4. protective circuit; 5. load LED lamp.
Embodiment
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection ", " being connected " should be interpreted broadly, and such as, can be fixedly connected with, and also can be that dismounting connects, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present utility model.
Refer to Fig. 1, the intelligent digital control circuit of a kind of no electrolytic capacitor low ripple LED drive power that what Fig. 1 disclosed is, comprises full wave and voltage doubling rectification input circuit, high-frequency oscillating circuits, MCU1, signal of telecommunication sample circuit, the core post of one-tenth " day " font, ripple presses down ordinary telegram road and full wave and voltage doubling rectifying output circuit; The armature winding N11 of described high-frequency oscillating circuits and armature winding N12 is respectively around on two side columns of described core post, described ripple presses down the additional winding N31 on ordinary telegram road and additional winding N32 respectively around on the position of two corresponding described armature winding N11 and described armature winding N12 of described side column, and the winding ND of described signal of telecommunication sample circuit and the secondary winding N2 of described full wave and voltage doubling rectifying output circuit is respectively accordingly around on the center pillar of described core post;
Described full wave and voltage doubling rectification input circuit and described high-frequency oscillating circuits are electrically connected, the control end of the signal output part of described MCU1 and the switching circuit 2 of described high-frequency oscillating circuits is electrically connected, described signal of telecommunication sample circuit and described MCU1 are electrically connected, described signal of telecommunication sample circuit provides electric energy and sampled signal for described MCU1, described switching circuit 2 controls the duty ratio of the signal of telecommunication in described high-frequency oscillating circuits, and described ripple presses down ordinary telegram road and the signal of telecommunication after rectification, filtering is flowed to load LED lamp 5 by described full wave and voltage doubling rectifying output circuit.
In the present embodiment, described full wave and voltage doubling rectification input circuit comprises AC power UIN, diode D1, diode D2, electric capacity C1 and electric capacity C2, the L end of described AC power UIN is electrically connected with the positive pole of described diode D1, the negative pole of described diode D2 respectively, and the N end of described AC power UIN is electrically connected with the negative pole of described diode D1, the positive pole of described diode D2 respectively by described electric capacity C1, described electric capacity C2.
In the present embodiment, described high-frequency oscillating circuits comprises diode DF2, diode DF1, diode DV, electric capacity CV1, electric capacity CV2, described switching circuit 2, described armature winding N11 and described armature winding N12, the negative pole of described diode D1 is electrically connected with one end of described armature winding N11 and the negative pole of described diode DF2 respectively, the other end of described armature winding N11 is electrically connected with one end of described armature winding N12 by described switching circuit 2, and the other end of described armature winding N12 and the positive pole of described diode D2 are electrically connected; The positive pole of described diode DF1 and the positive pole of described diode D2 are electrically connected, the negative pole of described diode DF1 is electrically connected with one end of described electric capacity CV1 and the positive pole of described diode DV respectively, the other end of described electric capacity CV1 and the other end of described armature winding N11 are electrically connected, and the negative pole of described diode DV and the positive pole of described diode DF2 are electrically connected respectively by one end of described electric capacity CV2 and described armature winding N12.
In the present embodiment, described switching circuit 2 is soft switch circuits 2, and described switching circuit 2 can be the ZCS Sofe Switch of " zero current passing ", and described switching circuit 2 can also be the ZVS Sofe Switch of " no-voltage cut-off ".
In the present embodiment, also comprise resistance RS, described switching circuit 2 is electrically connected by one end of described resistance RS and described armature winding N12, and the CS tie point of described MCU1 and the circuit between described switching circuit 2 and described resistance RS are electrically connected.
In the present embodiment, described signal of telecommunication sample circuit comprises described winding ND, diode DD1, diode DD2, voltage stabilizing didoe DZ, electric capacity CD1, electric capacity CD2, electric capacity CD, the vdd terminal of resistance RN and resistance RJ, described MCU1 respectively with one end of described electric capacity CD, the negative pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD1, one end of the negative pole of described diode DD1 and described resistance RJ is electrically connected, and the other end of described resistance RJ and the other end of described armature winding N11 are electrically connected, the GND of described MCU1 hold respectively with the other end of described electric capacity CD, the positive pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD2 and the positive pole of described diode DD2 are electrically connected, the other end of described electric capacity CD1 and the other end of described electric capacity CD2 are electrically connected with the other end of described winding ND respectively, the positive pole of described diode DD1 and the negative pole of described diode DD2 are electrically connected with one end of described winding ND respectively, the VSEN end of described MCU1 is electrically connected by the negative pole of described resistance RN and described diode DD1, and the GND end of described MCU1 is electrically connected with one end of described armature winding N12.
In the present embodiment, described full wave and voltage doubling rectifying output circuit comprises secondary winding N2, diode D01, diode D02, electric capacity C01, electric capacity C02, electric capacity C0 and resistance R0, one end of described secondary winding N2 is electrically connected with one end of described electric capacity C01 and one end of described electric capacity C02 respectively, the other end of described secondary winding N2 is electrically connected with the positive pole of described diode D01 and the negative pole of described diode D02 respectively, the other end of described electric capacity C01, the negative pole of described diode D01 and one end of described electric capacity C0 and one end of load LED lamp 5 are electrically connected, the other end of described electric capacity C02, the positive pole of described diode D02 and the other end of described electric capacity C0 and the other end of load LED lamp 5 are electrically connected, described resistance R0 is in parallel with described electric capacity C0.
In the present embodiment, described ripple presses down ordinary telegram road and comprises described additional winding N31, described additional winding N32, inductance L 31, inductance L 32, diode D311, diode D321, diode D312 and diode D322, and one end of described additional winding N31 is electrically connected with the positive pole of described diode D311, the negative pole of described diode D312 respectively by described inductance L 31; The other end of described additional winding N31 and one end of described additional winding N32 are electrically connected, and the other end of described additional winding N32 is electrically connected with the positive pole of described diode D321, the negative pole of described diode D322 respectively by described inductance L 32; The negative pole of described diode D311 and the negative pole of described diode D321 and one end of load LED lamp 5 are electrically connected, and the positive pole of described diode D312 and the positive pole of described diode D322 and the other end of load LED lamp 5 are electrically connected.
In the present embodiment, also comprise light modulation toning circuit 3, described light modulation toning circuit 3 is electrically connected with described MCU1.Also comprise protective circuit 4, described protective circuit 4 is electrically connected with described MCU1, and described protective circuit 4 comprises overvoltage protection, overcurrent protection, short-circuit protection, overvoltage protection and under-voltage protection etc.
In the utility model, described AC power UIN positive half wave to charge Q1 to described electric capacity C1 through described diode D1, described AC power UIN bears half-wave through described diode D2 to described electric capacity C2 charging Q2, Q1 and Q2 is flowed out by the positive pole of described electric capacity C1, and after flowing through described armature winding N11, described switching circuit 2, described resistance RS and described armature winding N12 successively, get back to again the negative pole of described electric capacity C2, complete the closed-loop path that Q1 and Q2 powers.Described electric capacity C1 and described electric capacity C2 all without electrochemical capacitor, and adopts the electric capacity not having liquid electrolyte.
In the utility model, before described switching circuit 2 does not work, direct current provides startup power supply through described armature winding N11 and described resistance RJ to described MCU1, and described MCU1 is started.After described MCU1 drives the work of described switching circuit 2, described winding ND obtains responding to alternating current, by described diode DD1 and described diode DD2, charge to described electric capacity CD1 and described electric capacity CD2, after described voltage-stabiliser tube DZ voltage stabilizing and described electric capacity CD filtering, power to described MCU1, replace the effect of the described resistance RJ of high power consumption poor efficiency, described electric capacity CD1, described electric capacity CD2 and described electric capacity CD all without electrochemical capacitor, and adopt the electric capacity not having liquid electrolyte.
In the utility model, after described MCU1 starts, described MCU1 controls described switching circuit 2 with the APFC afterflow of 20,000 times per second (can also be other numerical value) switch high-frequency rates, charges, obtain high-frequency direct-current electric current source QCV1 and QCV2 to described electric capacity CV1 and described electric capacity CV2.When described switching circuit 2 conducting, described diode DF1 presents the electric energy of QCV1 to described armature winding N12 and is converted into magnetic energy.Meanwhile, described diode DF2 presents the electric energy of QCV2 to affiliated armature winding N11 and is converted into magnetic energy.Described electric capacity CV1 and described electric capacity CV2 is with 20,000 times per second (can also be other numerical value) excitatory power supplies of source of high frequency current, and described electric capacity CV1 and described electric capacity CV2 does not all use electrochemical capacitor, and adopts the electric capacity not having liquid electrolyte.
In the utility model, described secondary winding N2 induced current i2, via described diode DO1 and described diode DO2, charges to described electric capacity CO1 and described electric capacity CO2, powers to load LED lamp 5 through described electric capacity CO filtering.Because described winding N2 and described electric capacity CO1, described electric capacity CO2, described diode DO1 and described diode DO2 form full wave and voltage doubling rectifying output circuit, the ripple frequency of i2 is made to be the twice of described switching circuit 2 operating frequency so have " frequency multiplication effect ", namely 40,000 hertz per second (can also be other numerical value) high frequency ripple, described electric capacity CO1, described electric capacity CO2 and described electric capacity CO all do not use electrochemical capacitor, and adopt the electric capacity not having liquid electrolyte, and described electric capacity CO only needs to adopt solid capacitor just can realize low ripple.
In the utility model, described additional winding N31, described inductance L 31, described electric capacity C01 and described electric capacity C02 series resonance are in the harmonic frequency of THD, harmful harmonic energy is converted into the positive energy pressing down plain weave ripple, turns harm into good, for pressing down contributing of plain weave ripple.Described additional winding N32, described inductance L 32, described electric capacity C01 and described electric capacity C02 series resonance, in harmonic frequency, are converted into harmful harmonic energy the positive energy pressing down plain weave ripple, turn harm into good, for pressing down contributing of plain weave ripple.Due to the effect of described inductance L 31 and described inductance L 32, make the ripple in output loop little, effectively promote electric work efficiency.
In the utility model, described switching circuit 2 is connected described resistance RS, each pulse energy of described switching circuit 2 conducting is controlled by described MCU1, the i.e. duty ratio of described MCU1 control impuls, thus accurately control the magnetic energy of described armature winding N11 and described armature winding N12, just realize accurate power limitation control, namely realize the power limitation control of load LED lamp 5.
In the utility model, by the timing dimming of described light modulation toning circuit 3, reach on the specular removal basis of load LED lamp 5, realize " secondary energy-saving " effect.Can also by described light modulation toning circuit 3 manually, wireless network or cable network remote control adjustment, described MCU1 collects electric current, voltage and the frequency parameter in described full wave and voltage doubling rectifying output circuit by described signal of telecommunication sample circuit, and according to these state modulator the switching frequency of switching circuit 2.
In the utility model, in order to improve electric work efficiency, have employed described full wave and voltage doubling rectification input circuit, reducing half when Same Efficieney than the source current of bridge rectifier.And only use soft switch circuit, make the current stress of described switching circuit 2 and voltage stress lower, reduce the loss of described switching circuit 2, improve electric work efficiency.Owing to not adopting electrochemical capacitor, add the useful life of described intelligent digital control circuit, make it can mate with the life-span of load LED lamp 5.
Claims (10)
1. an intelligent digital control circuit for no electrolytic capacitor low ripple LED drive power, is characterized in that: comprise full wave and voltage doubling rectification input circuit, high-frequency oscillating circuits, MCU, signal of telecommunication sample circuit, the core post of one-tenth " day " font, ripple press down ordinary telegram road and full wave and voltage doubling rectifying output circuit; The armature winding N11 of described high-frequency oscillating circuits and armature winding N12 is respectively around on two side columns of described core post, described ripple presses down the additional winding N31 on ordinary telegram road and additional winding N32 respectively around on the position of two corresponding described armature winding N11 and described armature winding N12 of described side column, and the winding ND of described signal of telecommunication sample circuit and the secondary winding N2 of described full wave and voltage doubling rectifying output circuit is respectively accordingly around on the center pillar of described core post; Described full wave and voltage doubling rectification input circuit and described high-frequency oscillating circuits are electrically connected, the control end of the signal output part of described MCU and the switching circuit of described high-frequency oscillating circuits is electrically connected, described signal of telecommunication sample circuit and described MCU are electrically connected, described signal of telecommunication sample circuit provides electric energy and sampled signal for described MCU, described switching circuit controls the duty ratio of the signal of telecommunication in described high-frequency oscillating circuits, and described ripple presses down ordinary telegram road and the signal of telecommunication after rectification, filtering is flowed to load LED lamp by described full wave and voltage doubling rectifying output circuit.
2. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 1, it is characterized in that: described full wave and voltage doubling rectification input circuit comprises AC power UIN, diode D1, diode D2, electric capacity C1 and electric capacity C2, the L end of described AC power UIN is electrically connected with the positive pole of described diode D1, the negative pole of described diode D2 respectively, and the N end of described AC power UIN is electrically connected with the negative pole of described diode D1, the positive pole of described diode D2 respectively by described electric capacity C1, described electric capacity C2.
3. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 2, it is characterized in that: described high-frequency oscillating circuits comprises diode DF2, diode DF1, diode DV, electric capacity CV1, electric capacity CV2, described switching circuit, described armature winding N11 and described armature winding N12, the negative pole of described diode D1 is electrically connected with one end of described armature winding N11 and the negative pole of described diode DF2 respectively, the other end of described armature winding N11 is electrically connected by one end of described switching circuit and described armature winding N12, the other end of described armature winding N12 and the positive pole of described diode D2 are electrically connected, the positive pole of described diode DF1 and the positive pole of described diode D2 are electrically connected, the negative pole of described diode DF1 is electrically connected with one end of described electric capacity CV1 and the positive pole of described diode DV respectively, the other end of described electric capacity CV1 and the other end of described armature winding N11 are electrically connected, and the negative pole of described diode DV and the positive pole of described diode DF2 are electrically connected respectively by one end of described electric capacity CV2 and described armature winding N12.
4. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 3, is characterized in that: described switching circuit is soft switch circuit.
5. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 3, it is characterized in that: also comprise resistance RS, described switching circuit is electrically connected by one end of described resistance RS and described armature winding N12, and the CS tie point of described MCU and the circuit between described switching circuit and described resistance RS are electrically connected.
6. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 3, it is characterized in that: described signal of telecommunication sample circuit comprises described winding ND, diode DD1, diode DD2, voltage stabilizing didoe DZ, electric capacity CD1, electric capacity CD2, electric capacity CD, resistance RN and resistance RJ, the vdd terminal of described MCU respectively with one end of described electric capacity CD, the negative pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD1, the negative pole of described diode DD1 and one end of described resistance RJ are electrically connected, the other end of described resistance RJ and the other end of described armature winding N11 are electrically connected, the GND end of described MCU respectively with the other end of described electric capacity CD, the positive pole of described voltage stabilizing didoe DZ, one end of described electric capacity CD2 and the positive pole of described diode DD2 are electrically connected, the other end of described electric capacity CD1 and the other end of described electric capacity CD2 are electrically connected with the other end of described winding ND respectively, the positive pole of described diode DD1 and the negative pole of described diode DD2 are electrically connected with one end of described winding ND respectively, the VSEN end of described MCU is electrically connected by the negative pole of described resistance RN and described diode DD1, the GND end of described MCU is electrically connected with one end of described armature winding N12.
7. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 1 and 2, it is characterized in that: described full wave and voltage doubling rectifying output circuit comprises secondary winding N2, diode D01, diode D02, electric capacity C01, electric capacity C02, electric capacity C0 and resistance R0, one end of described secondary winding N2 is electrically connected with one end of described electric capacity C01 and one end of described electric capacity C02 respectively, the other end of described secondary winding N2 is electrically connected with the positive pole of described diode D01 and the negative pole of described diode D02 respectively, the other end of described electric capacity C01, the negative pole of described diode D01 and one end of described electric capacity C0 and one end of load LED lamp are electrically connected, the other end of described electric capacity C02, the positive pole of described diode D02 and the other end of described electric capacity C0 and the other end of load LED lamp are electrically connected, described resistance R0 is in parallel with described electric capacity C0.
8. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 1 and 2, it is characterized in that: described ripple presses down ordinary telegram road and comprises described additional winding N31, described additional winding N32, inductance L 31, inductance L 32, diode D311, diode D321, diode D312 and diode D322, and one end of described additional winding N31 is electrically connected with the positive pole of described diode D311, the negative pole of described diode D312 respectively by described inductance L 31; The other end of described additional winding N31 and one end of described additional winding N32 are electrically connected, and the other end of described additional winding N32 is electrically connected with the positive pole of described diode D321, the negative pole of described diode D322 respectively by described inductance L 32; The negative pole of described diode D311 and the negative pole of described diode D321 and one end of load LED lamp are electrically connected, and the positive pole of described diode D312 and the positive pole of described diode D322 and the other end of load LED lamp are electrically connected.
9. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 1 and 2, is characterized in that: also comprise light modulation toning circuit, described light modulation toning circuit and described MCU are electrically connected.
10. the intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power according to claim 1 and 2, is characterized in that: also comprise protective circuit, and described protective circuit and described MCU are electrically connected.
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| CN201520497265.7U CN204795770U (en) | 2015-07-11 | 2015-07-11 | Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit |
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| CN201520497265.7U CN204795770U (en) | 2015-07-11 | 2015-07-11 | Low ripple LED drive power supply's of no electrolytic capacitor intelligent digital control circuit |
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| CN204795770U true CN204795770U (en) | 2015-11-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105050262A (en) * | 2015-07-13 | 2015-11-11 | 南宁常萌电子科技有限公司 | All-solid-state low-ripple LED lamp intelligent numerical control power supply |
-
2015
- 2015-07-11 CN CN201520497265.7U patent/CN204795770U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104994652B (en) * | 2015-07-11 | 2017-09-19 | 深圳创智慧能电子科技有限公司 | The intelligent digital control circuit of no electrolytic capacitor low ripple LED drive power |
| CN105050262A (en) * | 2015-07-13 | 2015-11-11 | 南宁常萌电子科技有限公司 | All-solid-state low-ripple LED lamp intelligent numerical control power supply |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170919 |