CN114390741B - Krypton lamp light source driving integrated circuit - Google Patents

Krypton lamp light source driving integrated circuit Download PDF

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Publication number
CN114390741B
CN114390741B CN202111652729.3A CN202111652729A CN114390741B CN 114390741 B CN114390741 B CN 114390741B CN 202111652729 A CN202111652729 A CN 202111652729A CN 114390741 B CN114390741 B CN 114390741B
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resistor
chip
capacitor
pin
circuit
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CN114390741A (en
Inventor
于志伟
沈辉萍
罗振中
王斌
张涵
付聪
洪峰
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Hangzhou Chunlai Technology Co Ltd
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Hangzhou Chunlai Technology Co Ltd
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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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • 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

Abstract

The invention belongs to the technical field of light source driving, and particularly relates to a krypton light source driving integrated circuit which comprises a switch controller, a booster circuit, a power trigger circuit and a constant current output circuit; the switch controller controls the boost circuit to output a first target voltage to the input of the power trigger circuit, then the power trigger circuit works to output a second target voltage to realize starting, and then current is fed back to the switch controller and is controlled to be output by the constant current output circuit through the switch controller. The krypton lamp light source driving integrated circuit realizes the single-chip control of the switch controller, can realize constant voltage and constant current control, reduces the debugging of discrete components, improves the fault tolerance of the circuit, has more stable performance, is safe and reliable, and is beneficial to miniaturization of the circuit structure size.

Description

Krypton lamp light source driving integrated circuit
Technical Field
The invention belongs to the technical field of light source driving, and particularly relates to a krypton lamp light source driving integrated circuit.
Background
The prior krypton lamp light source driving circuit is formed by connecting discrete components, the control chip is only used for boosting control, and the constant voltage and constant current feedback is logically controlled through an external operational amplifier; so designed, there are the following disadvantages:
1. the control logic is complex, so that debugging is difficult;
2. the fault tolerance rate is not high;
3. the circuit structure has larger size and is not beneficial to miniature design.
Disclosure of Invention
In view of the foregoing drawbacks and deficiencies of the prior art, it is an object of the present invention to at least address one or more of the above-identified problems of the prior art, in other words, to provide a krypton light source driving integrated circuit that satisfies one or more of the foregoing needs.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the krypton lamp light source driving integrated circuit comprises a switch controller, a booster circuit, a power supply trigger circuit and a constant current output circuit;
the switch controller controls the boost circuit to output a first target voltage to the input of the power trigger circuit, then the power trigger circuit works to output a second target voltage to realize starting, and then current is fed back to the switch controller and is controlled to be output by the constant current output circuit through the switch controller.
As a preferred scheme, the switch controller comprises an MB3759 chip U1, a 24V input is externally connected to a 12 pin of the MB3759 chip U1, the 12 pin of the MB3759 chip U1 is also connected with a boost circuit, a 3 pin of the MB3759 chip U1 is connected with a capacitor C5 and a capacitor C8, the other end of the capacitor C5 is respectively connected with a resistor R9 and a capacitor C6, and the other ends of the resistor R9 and the capacitor C6 are connected with a 2 pin of the MB3759 chip U1; the other end of the capacitor C8 is connected with the resistor R12 and the pin 15 of the MB3759 chip U1, the other end of the resistor R12 is respectively connected with the pin 14 of the MB3759 chip U1 and the capacitor C7, and the other end of the capacitor C7 is grounded;
the 1 pin of the MB3759 chip U1 is respectively connected with a resistor R10 and a resistor R11, the other end of the resistor R10 is connected with the 14 pin of the MB3759 chip U1, and the other end of the resistor R11 is grounded; the 4 pins of the MB3759 chip U1 are respectively connected with a resistor R18, a resistor R19 and a capacitor C11, the other end of the resistor R19 is grounded, and the other ends of the resistor R18 and the capacitor C11 are connected with the 14 pins of the MB3759 chip U1;
the 7 pin of the MB3759 chip U1 is grounded, the 13 pin of the MB3759 chip U1 is connected with the 14 pin of the MB3759 chip U1, the 5 pin of the MB3759 chip U1 is connected with the capacitor C10, and the other end of the capacitor C10 is grounded; the 6 pin of the MB3759 chip U1 is connected with a resistor R17, and the other end of the resistor R17 is grounded; pins 9 and 10 of the MB3759 chip U1 are grounded, pins 8 and 11 of the MB3759 chip U1 are connected with the booster circuit, and pin 16 of the MB3759 chip U1 is connected with the constant current output circuit.
As a preferred scheme, the boost circuit comprises a boost transformer T1, a current limiting resistor R4, a pull-down resistor R5, a MOS transistor Q1 and a diode D1, wherein a primary coil of the boost transformer T1 is respectively connected with a 12 pin of an MB3759 chip U1 and a drain electrode of the MOS transistor Q1, a grid electrode of the MOS transistor Q1 is respectively connected with the current limiting resistor R4 and the pull-down resistor R5, the other end of the current limiting resistor R4 is connected with an 8 pin and an 11 pin of the MB3759 chip U1, and the other end of the pull-down resistor R5 and a source electrode of the MOS transistor Q1 are grounded; the secondary coil of the step-up transformer T1 is connected with the input VA of the power trigger circuit through a diode D1, and the secondary coil of the step-up transformer T1 is also connected with the output VI of the constant current output circuit.
Preferably, the connection between the 12 pin of the MB3759 chip U1 and the primary winding of the step-up transformer T1 is also grounded through a filter capacitor C1.
As a preferred scheme, the power trigger circuit comprises a resistor R13, a resistor R14, a polar capacitor C9, a trigger diode D3, a bleeder resistor R15, a step-up transformer T2 and a diode D2, wherein the resistor R13 is connected with an input VA of the power trigger circuit, the input VA of the power trigger circuit is connected with a cathode of a diode D1, and an anode of the diode D1 is connected with a secondary coil of the step-up transformer T1; the other end of the resistor R13 is connected with the resistor R14, the other end of the resistor R14 is respectively connected with the positive electrode of the polar capacitor C9 and the negative electrode of the trigger diode D3, the negative electrode of the polar capacitor C9 is grounded, the positive electrode of the trigger diode D3 is connected with the bleeder resistor R15, the other end of the bleeder resistor R15 is connected with the primary coil of the step-up transformer T2, the secondary coil of the step-up transformer T2 is connected with the positive electrode of the diode D2, and the negative electrode of the diode D2 is connected to the input of the constant current output circuit.
Preferably, the connection between the positive electrode of the trigger diode D3 and the bleeder resistor R15 is further grounded through a resistor R16.
As a preferred scheme, the constant current output circuit comprises an adjustable resistor VR1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8 and a diode D4, wherein a first fixed pin of the adjustable resistor VR1 is respectively connected with a secondary coil of the step-up transformer T1 and the output of the constant current output circuit, a second fixed pin of the adjustable resistor VR1 is connected with the resistor R7, the other end of the resistor R7 is respectively connected with 2 pins of a resistor R8 and a resistor MB3759 chip U1, and the other end of the resistor R8 is connected with 14 pins of the resistor MB3759 chip U1;
the negative electrode of the diode D4 is connected with the input of the constant current output circuit, the positive electrode of the diode D4 is respectively connected with the input VA of the power supply trigger circuit, the negative electrode of the diode D1 and the resistor R1, the other end of the resistor R1 is connected with the first end of the resistor R2, the second end of the resistor R2 and the first end of the resistor R3 are respectively connected with the 16 pins of the MB3759 chip U1, the second end of the resistor R3 is connected with the output VI of the constant current output circuit, the first end of the resistor R6 is connected with the output VI of the constant current output circuit, and the second end of the resistor R6 is grounded.
As a preferred scheme, the constant current output circuit includes a polar capacitor C2, an anode of the polar capacitor C2 is connected with a cathode of the diode D1, and the cathode of the polar capacitor C2 is respectively connected with a first fixed pin of the adjustable resistor VR1, a second end of the resistor R3 and a first end of the resistor R6.
Preferably, the constant current output circuit includes a polarity capacitor C3, an anode of the polarity capacitor C3 is connected to a cathode of the diode D1, and a cathode of the polarity capacitor C3 is grounded.
Preferably, the constant current output circuit includes a capacitor C4, one end of the capacitor C4 is connected to the cathode of the diode D1, and the other end is connected to the second end of the resistor R2.
Compared with the prior art, the invention has the beneficial effects that:
the krypton lamp light source driving integrated circuit realizes the single-chip control of the switch controller, can realize constant voltage and constant current control, reduces the debugging of discrete components, is more convenient to debug, improves the fault tolerance of the circuit, has more stable performance, is safe and reliable, and is beneficial to miniaturization of the circuit structure size.
Drawings
FIG. 1 is a schematic circuit diagram of a switch controller according to embodiment 1 of the present invention;
FIG. 2 is a schematic circuit diagram of a power trigger circuit according to embodiment 1 of the present invention;
fig. 3 is a circuit schematic diagram of the booster circuit and the constant current output circuit of embodiment 1 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Example 1:
as shown in fig. 1 to 3, the krypton light source driving integrated circuit of the present embodiment includes a switch controller, a booster circuit, a power supply trigger circuit, and a constant current output circuit.
The control logic of the krypton light source driving integrated circuit of the embodiment is as follows: the switch controller controls the boost circuit to output a first target voltage to the input of the power trigger circuit, then the power trigger circuit works to output a second target voltage to realize starting, and then current is fed back to the switch controller and is controlled to be output by the constant current output circuit through the switch controller.
As shown in FIG. 1, the switch controller comprises an MB3759 chip U1, constant voltage and constant current control can be realized through a single chip structural design, the fault tolerance is improved, and the integration level is high.
Specifically, the 12 pin of the MB3759 chip U1 is externally connected with 24V input, the 12 pin of the MB3759 chip U1 is also connected with a boost circuit, the 3 pin of the MB3759 chip U1 is connected with a capacitor C5 and a capacitor C8, the other end of the capacitor C5 is respectively connected with a resistor R9 and a capacitor C6, and the other ends of the resistor R9 and the capacitor C6 are connected with the 2 pin of the MB3759 chip U1; the other end of the capacitor C8 is connected with the resistor R12 and the pin 15 of the MB3759 chip U1, the other end of the resistor R12 is respectively connected with the pin 14 of the MB3759 chip U1 and the capacitor C7, and the other end of the capacitor C7 is grounded;
the capacitor C5, the capacitor C6, the capacitor C8 and the resistor R9 are all used for feedback coefficients;
the 1 pin of the MB3759 chip U1 is respectively connected with a resistor R10 and a resistor R11, the other end of the resistor R10 is connected with the 14 pin of the MB3759 chip U1, and the other end of the resistor R11 is grounded; the 4 pins of the MB3759 chip U1 are respectively connected with a resistor R18, a resistor R19 and a capacitor C11, the other end of the resistor R19 is grounded, and the other ends of the resistor R18 and the capacitor C11 are connected with the 14 pins of the MB3759 chip U1;
the resistors R10 and R11 are used for providing reference for voltage division.
The 7 pin of the MB3759 chip U1 is grounded, the 13 pin of the MB3759 chip U1 is connected with the 14 pin of the MB3759 chip U1, the 5 pin of the MB3759 chip U1 is connected with the capacitor C10, and the other end of the capacitor C10 is grounded; the 6 pin of the MB3759 chip U1 is connected with a resistor R17, and the other end of the resistor R17 is grounded; the 9 pins and the 10 pins of the MB3759 chip U1 are grounded, the 8 pins and the 11 pins of the MB3759 chip U1 are connected with a booster circuit, and the 16 pins of the U1 are connected with a constant current output circuit;
wherein the capacitances C10 and R17 are used to set the switching frequency.
As shown in fig. 2, the boost circuit of the embodiment includes a boost transformer T1, a current limiting resistor R4, a pull-down resistor R5, a MOS transistor Q1 and a diode D1, wherein a primary coil of the boost transformer T1 is respectively connected to a 12 pin of an MB3759 chip U1 and a drain electrode of the MOS transistor Q1, a gate electrode of the MOS transistor Q1 is respectively connected to the current limiting resistor R4 and the pull-down resistor R5, the other end of the current limiting resistor R4 is connected to an 8 pin and an 11 pin of the MB3759 chip U1, and the other end of the pull-down resistor R5 and a source electrode of the MOS transistor Q1 are grounded; the secondary coil of the step-up transformer T1 is connected with the input VA of the power trigger circuit through a diode D1, and the secondary coil of the step-up transformer T1 is also connected with the output VI of the constant current output circuit.
In addition, the 12 pin of the MB3759 chip U1 is grounded through the filter capacitor C1, and the primary winding of the step-up transformer T1.
As shown in fig. 3, the power trigger circuit of the present embodiment includes a resistor R13, a resistor R14, a polar capacitor C9, a trigger diode D3, a bleeder resistor R15, a step-up transformer T2 and a diode D2, wherein the resistor R13 is connected to an input VA of the power trigger circuit, the input VA of the power trigger circuit is connected to a cathode of a diode D1, and an anode of the diode D1 is connected to a secondary coil of the step-up transformer T1; the other end of the resistor R13 is connected with the resistor R14, the other end of the resistor R14 is respectively connected with the positive electrode of the polar capacitor C9 and the negative electrode of the trigger diode D3, the negative electrode of the polar capacitor C9 is grounded, the positive electrode of the trigger diode D3 is connected with the bleeder resistor R15, the other end of the bleeder resistor R15 is connected with the primary coil of the step-up transformer T2, the secondary coil of the step-up transformer T2 is connected with the positive electrode of the diode D2, and the negative electrode of the diode D2 is connected to the input of the constant current output circuit.
The resistors R13 and R14 are used to charge the polar capacitor C9 so as to reach the threshold of the trigger diode D3.
In addition, the positive electrode of the trigger diode D3 is grounded to the bleeder resistor R15 through the resistor R16.
As shown in fig. 2, the constant current output circuit of the embodiment includes an adjustable resistor VR1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8 and a diode D4, wherein a first fixed pin of the adjustable resistor VR1 is respectively connected with a secondary coil of the step-up transformer T1 and an output of the constant current output circuit, a second fixed pin of the adjustable resistor VR1 is connected with a resistor R7, the other end of the resistor R7 is respectively connected with a pin 2 of the resistor R8 and a pin 2 of the MB3759 chip U1, and the other end of the resistor R8 is connected with a pin 14 of the MB3759 chip U1;
the negative electrode of the diode D4 is connected with the input of the constant current output circuit, the positive electrode of the diode D4 is respectively connected with the input VA of the power supply trigger circuit, the negative electrode of the diode D1 and the resistor R1, the other end of the resistor R1 is connected with the first end of the resistor R2, the second end of the resistor R2 and the first end of the resistor R3 are respectively connected with the 16 pins of the MB3759 chip U1, the second end of the resistor R3 is connected with the output VI of the constant current output circuit, the first end of the resistor R6 is connected with the output VI of the constant current output circuit, and the second end of the resistor R6 is grounded.
In addition, the constant current output circuit of the embodiment includes a polar capacitor C2, where an anode of the polar capacitor C2 is connected to a cathode of the diode D1, and the cathode of the polar capacitor C2 is connected to a first fixed pin of the adjustable resistor VR1, a second end of the resistor R3, and a first end of the resistor R6, respectively.
The constant current output circuit of the embodiment includes a polar capacitor C3, where an anode of the polar capacitor C3 is connected to a cathode of the diode D1, and the cathode of the polar capacitor C3 is grounded.
The constant current output circuit of this embodiment includes a capacitor C4, one end of the capacitor C4 is connected to the cathode of the diode D1, and the other end is connected to the second end of the resistor R2.
The krypton light source driving integrated circuit of the embodiment outputs-400V in a boosting way through a boosting circuit after 24V power supply, and charges the capacitor of the high-voltage trigger diode; when the threshold of the high-voltage trigger diode is reached, the diode is conducted and the booster transformer T2 outputs-1500V to realize successful starting, then the constant-current output is started, and the power trigger circuit is closed.
Wherein, the adjustable resistor VR1 is used for adjusting the VI voltageThe constant current is changed, i.e. the constant current output can be changed by the adjustable resistor VR 1. VI voltage is I out *R6，I out Is a modulated constant current output.
If the starting fails, the power trigger circuit is continuously started.
Example 2:
the krypton light source driving integrated circuit of the present embodiment is different from that of embodiment 1 in that:
the circuit structure can be simplified according to the actual application requirement, for example, the capacitor C4, the polar capacitor C3, the polar capacitor C2, the resistor R16 and the like are omitted, the requirements of different applications are met, and meanwhile, the cost is reduced;
other structures can be referred to embodiment 1.
Example 3:
the krypton light source driving integrated circuit of the present embodiment is different from that of embodiment 1 in that:
the switch controller adopts the MB3759 chip to replace other chips commonly used in the prior art, is not limited to the type, and can be selected according to actual requirements so as to meet the requirements of different applications;
other structures can be referred to embodiment 1.
The foregoing is only illustrative of the preferred embodiments and principles of the present invention, and changes in specific embodiments will occur to those skilled in the art upon consideration of the teachings provided herein, and such changes are intended to be included within the scope of the invention as defined by the claims.

Claims (9)

1. The krypton lamp light source driving integrated circuit is characterized by comprising a switch controller, a booster circuit, a power supply trigger circuit and a constant current output circuit;
the switch controller controls the booster circuit to output a first target voltage to the input of the power trigger circuit, then the power trigger circuit works to output a second target voltage to realize starting, and then current is fed back to the switch controller and is controlled to be output by the constant current output circuit through the switch controller;
the switch controller comprises an MB3759 chip U1, wherein the 12 pins of the MB3759 chip U1 are externally connected with 24V input, the 12 pins of the MB3759 chip U1 are also connected with a boost circuit, the 3 pins of the MB3759 chip U1 are connected with a capacitor C5 and a capacitor C8, the other end of the capacitor C5 is respectively connected with a resistor R9 and a capacitor C6, and the other ends of the resistor R9 and the capacitor C6 are connected with the 2 pins of the MB3759 chip U1; the other end of the capacitor C8 is connected with the resistor R12 and the pin 15 of the MB3759 chip U1, the other end of the resistor R12 is respectively connected with the pin 14 of the MB3759 chip U1 and the capacitor C7, and the other end of the capacitor C7 is grounded;
the 1 pin of the MB3759 chip U1 is respectively connected with a resistor R10 and a resistor R11, the other end of the resistor R10 is connected with the 14 pin of the MB3759 chip U1, and the other end of the resistor R11 is grounded; the 4 pins of the MB3759 chip U1 are respectively connected with a resistor R18, a resistor R19 and a capacitor C11, the other end of the resistor R19 is grounded, and the other ends of the resistor R18 and the capacitor C11 are connected with the 14 pins of the MB3759 chip U1;
the 7 pin of the MB3759 chip U1 is grounded, the 13 pin of the MB3759 chip U1 is connected with the 14 pin of the MB3759 chip U1, the 5 pin of the MB3759 chip U1 is connected with the capacitor C10, and the other end of the capacitor C10 is grounded; the 6 pin of the MB3759 chip U1 is connected with a resistor R17, and the other end of the resistor R17 is grounded; pins 9 and 10 of the MB3759 chip U1 are grounded, pins 8 and 11 of the MB3759 chip U1 are connected with the booster circuit, and pin 16 of the MB3759 chip U1 is connected with the constant current output circuit.
2. The krypton lamp light source driving integrated circuit according to claim 1, wherein the booster circuit comprises a booster transformer T1, a current limiting resistor R4, a pull-down resistor R5, a MOS transistor Q1 and a diode D1, wherein a primary coil of the booster transformer T1 is respectively connected with a 12 pin of an MB3759 chip U1 and a drain electrode of the MOS transistor Q1, a grid electrode of the MOS transistor Q1 is respectively connected with the current limiting resistor R4 and the pull-down resistor R5, the other end of the current limiting resistor R4 is connected with an 8 pin and an 11 pin of the MB3759 chip U1, and the other end of the pull-down resistor R5 and a source electrode of the MOS transistor Q1 are grounded; the secondary coil of the step-up transformer T1 is connected with the input VA of the power trigger circuit through a diode D1, and the secondary coil of the step-up transformer T1 is also connected with the output VI of the constant current output circuit.
3. The krypton light source driving integrated circuit according to claim 2, wherein the connection between the 12 pin of the MB3759 chip U1 and the primary winding of the step-up transformer T1 is further grounded through a filter capacitor C1.
4. The krypton light source driving integrated circuit according to claim 2 or 3, wherein the power supply trigger circuit comprises a resistor R13, a resistor R14, a polarity capacitor C9, a trigger diode D3, a bleeder resistor R15, a step-up transformer T2 and a diode D2, the resistor R13 is connected to an input VA of the power supply trigger circuit, the input VA of the power supply trigger circuit is connected to a cathode of the diode D1, and an anode of the diode D1 is connected to a secondary coil of the step-up transformer T1; the other end of the resistor R13 is connected with the resistor R14, the other end of the resistor R14 is respectively connected with the positive electrode of the polar capacitor C9 and the negative electrode of the trigger diode D3, the negative electrode of the polar capacitor C9 is grounded, the positive electrode of the trigger diode D3 is connected with the bleeder resistor R15, the other end of the bleeder resistor R15 is connected with the primary coil of the step-up transformer T2, the secondary coil of the step-up transformer T2 is connected with the positive electrode of the diode D2, and the negative electrode of the diode D2 is connected to the input of the constant current output circuit.
5. The krypton light source driving integrated circuit of claim 4, wherein the positive electrode of the trigger diode D3 is further grounded via a resistor R16 to the discharge resistor R15.
6. The krypton light source driving integrated circuit according to claim 4, wherein the constant current output circuit comprises an adjustable resistor VR1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8 and a diode D4, wherein a first fixed pin of the adjustable resistor VR1 is respectively connected with a secondary coil of the step-up transformer T1 and an output of the constant current output circuit, a second fixed pin of the adjustable resistor VR1 is connected with the resistor R7, the other end of the resistor R7 is respectively connected with a 2 pin of the resistor R8 and the MB3759 chip U1, and the other end of the resistor R8 is connected with a 14 pin of the MB3759 chip U1;
the negative electrode of the diode D4 is connected with the input of the constant current output circuit, the positive electrode of the diode D4 is respectively connected with the input VA of the power supply trigger circuit, the negative electrode of the diode D1 and the resistor R1, the other end of the resistor R1 is connected with the first end of the resistor R2, the second end of the resistor R2 and the first end of the resistor R3 are respectively connected with the 16 pins of the MB3759 chip U1, the second end of the resistor R3 is connected with the output VI of the constant current output circuit, the first end of the resistor R6 is connected with the output VI of the constant current output circuit, and the second end of the resistor R6 is grounded.
7. The krypton light source driving integrated circuit according to claim 6, wherein the constant current output circuit includes a polarity capacitor C2, the positive electrode of the polarity capacitor C2 is connected to the negative electrode of the diode D1, and the negative electrode of the polarity capacitor C2 is connected to the first pin of the adjustable resistor VR1, the second end of the resistor R3, and the first end of the resistor R6, respectively.
8. The krypton light source driving integrated circuit according to claim 6, wherein the constant current output circuit includes a polarity capacitor C3, the positive electrode of the polarity capacitor C3 is connected to the negative electrode of the diode D1, and the negative electrode of the polarity capacitor C3 is grounded.
9. The krypton light source driving integrated circuit according to claim 6, wherein the constant current output circuit includes a capacitor C4, one end of the capacitor C4 is connected to the cathode of the diode D1, and the other end is connected to the second end of the resistor R2.
CN202111652729.3A 2021-12-30 2021-12-30 Krypton lamp light source driving integrated circuit Active CN114390741B (en)

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CN2253094Y (en) * 1996-03-21 1997-04-23 马炳琰 Cutoff-free energy saving lamp
CN106028609A (en) * 2016-07-13 2016-10-12 东文高压电源（天津）股份有限公司 Wide-range trigger frequency xenon flash lamp high voltage module power supply
CN109451639A (en) * 2018-09-30 2019-03-08 深圳市英朗光电有限公司 A kind of efficient direct current fluorescent lamp and efficient direct current fluorescent-lamp-use adaptive transformation device

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Publication number Priority date Publication date Assignee Title
US7589480B2 (en) * 2006-05-26 2009-09-15 Greenwood Soar Ip Ltd. High intensity discharge lamp ballast

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2253094Y (en) * 1996-03-21 1997-04-23 马炳琰 Cutoff-free energy saving lamp
CN106028609A (en) * 2016-07-13 2016-10-12 东文高压电源（天津）股份有限公司 Wide-range trigger frequency xenon flash lamp high voltage module power supply
CN109451639A (en) * 2018-09-30 2019-03-08 深圳市英朗光电有限公司 A kind of efficient direct current fluorescent lamp and efficient direct current fluorescent-lamp-use adaptive transformation device

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