TWI307988B - Laser power source apparatus - Google Patents

Description

1307988 IX. Description of the invention: [Technical field to which the invention pertains] 、 The present invention is a power supply device for providing a laser power source, and the high power source applied thereto is an electronic ballast or a power exchanger, and then the output of the high frequency power source Power supply to the straight, or AC high-voltage supply circuit, to generate DC or AC power supply & load 'This load includes the basic principle of gas discharge, laser, argon ion + radiation, carbon dioxide laser, etc. and the basic principle of solid-state laser Amethyst gemstone, = gemstone laser, sapphire laser, EnYAG laser, H0:YAG laser, quasi-minute $=, dye laser, illumination, backlight discharge tube light or backlighting LEJ group Ignition voltage, pulse voltage, continuous DC high voltage or high frequency imaginary intermittent DC south voltage or high frequency high voltage. The invention is provided with the protection of the overvoltage and overcurrent of the spot protection double smashing, and the function of achieving the current or the power supply to the load, and the external and internal control circuits are provided.

Lit is made to 1 ίίί ' in order to optimize the load of the laser light source and /, / rate, and the quality of the laser source and illumination and backlight for the application of people's livelihood, industry, medical and defense. Eight [previous technology] Double voltage Σ ίί 雷用_Power system is composed of rectification button, inverter, ΐ ΐ 之 ^ ^ 7 sampling circuit and purchase control f road and other departments constructed 'the DC output will touch with AC ^ _ has changed, so its DC output voltage cannot be stabilized. 2. The output voltage of the device is also not stable with the DC output high voltage. Right and right, the point field is used as a glow discharger, and the ignition action of the sampling circuit and the drive circuit is not good, causing the discharge tube to enter the arc discharge area and damage the discharge tube. 4. The ignition part of the Wei Waihe circuit is called an ignition action, resulting in an increase in cost. 5. The basic DC S voltage power supply will enable the non-continuous DC voltage supply to be extended. It cannot be applied to automatic high-speed mechanical operation devices, which cannot meet the needs of the industry. 6. If the tube is powered without a steady current device, a steady current resistor is needed to increase the power consumption and reduce the power supply efficiency. 7·= A single power supply unit that can supply continuous or discontinuous DC power, pulse power and inter-frequency power to various laser loads. It is known that the laser and the fine material of the fine-grained switch electric ΐϊ ίί ^ electronic ballast circuit provides - a wide range of AC AC lion, 5 敝 / 6 account, stable DC voltage output, production two two road 'make high frequency vibration circuit The output has a stable voltage and frequency supply, DC or AC high voltage supply circuit, _ a high power beat 5, Xiao Gao Wei ship rate; if it is a large discharge tube high energy installation, phase source exchange 11 'its power supply The input can be powered by a single-phase or s-stable DC voltage. The high-frequency vibrating power can be used to make the voltage or stable frequency of the straight-through or parent-flow voltage supply circuit. 丄At the same time, there is a basic DC high-voltage power supply, which can be used to check the circuit. Ignition time, ii, DC high voltage wheel*; ignition 'Wei is set in high dirty I circuit, and the provincial drive control department; with discharge tube steady current circuit, can reach the steady gas of turtle resistance The effect is to improve the (4) effect required for the external control of the internal control system; and the DC output of the present invention is required for the low voltage DC power supply and protection circuit of the present invention. And deal with it Source, the power supply protection circuit and (iv) in healthy path; provided over-voltage and overcurrent, 1307988 *, ~ s protection circuit vine, to protect the safety of the present invention. - The invention is based on her research and development experience in the electronics industry for many years. It is the idea of thinking and improvement. After many designs, discussions, trial samples and improvements, I finally researched the laser power position and bribed. The above-mentioned lack of conventional knowledge. SUMMARY OF THE INVENTION In order to effectively provide the requirements of the laser power system: ▲ the first - the purpose is to apply the electronic stability 11 as a high source, to solve the problem, the legal system of the money voltage, the high frequency and frequency and The lack of low power. The second purpose of the Ming Dynasty is to provide a -f source converter (P.·Inverter) for the unrecognizable money voltage domain. The high-frequency decision is to set up a basic DC high-voltage power supply circuit to solve the problem and complete the ignition action. The output of the fast discontinuity controls the discharge & the absence of ignition time to glow discharge time. The fourth purpose of Fayu ^!!^ is to set a DC current source with stable load to solve the problem that the discharge tube circuit f has a steady current resistance. The fifth object of the present invention is to provide a high-frequency vibrating circuit to solve the problem that the conventional driving control department needs to increase the cost of the lack of thermal power protection, and the seventh purpose of providing the over-voltage and over-current protection circuit The preferred hardware achieves its purpose and efficacy and can be implemented accordingly. Lin case this 7 1307988 invention ^ the following 4 2: the lack of switching power supply system known by laser power supply, this 1. still frequency power supply uses electronic = high filter high frequency voltage supply to DC ϊ AC high energy for output stability 2_高高=心;;, Zhenna, enough 3. The road is powered by a basic DC high voltage power supply, which is used for intermittent or continuous laser power supply. The sign is for the light _ as a feedback: there is a road that is characterized by a stable and timed ignition voltage. The ignition function of the Lc resonant circuit is based on the spectral curve of the Lc resonant circuit. Ignition and glow discharge electric seat. The shielding circuit is characterized in that a photoelectric consumption circuit is used. [Embodiment] As shown in FIG. 1, a block diagram of the laser power supply device of the present invention includes a high frequency power source circuit (100). , DC or AC flow supply circuit (DC/AC Power Supply Ciixui t, 200), load (Load, 300), feedback and protection circuit (400), and external and internal control circuits (External and The Internal Controller Circuit (500) consists of a high-frequency power supply circuit (100) that is regulated by a Boost Active Power Factor Correctoi* (Boost APFC '110) or a dust and pulse width of 1307988. Variable (PWM) combined active power factor correction circuit (B〇〇st and pwM Controller Combo APFC, 110) or boost and pulse width modulation (pwM) separate active power factor correction circuit (Boost and PWM Controller Disunion APFC) '110) is composed of a high frequency Oscillating Circuit '120. Since the high-frequency power supply circuit (1〇〇) includes the active power factor correction circuit (110) and the high-frequency oscillation circuit (丨2〇), the two functions are the same as the electronic ballast (Electronic Ballast), so the present invention The electronic ballast can be a high-frequency power supply circuit (1〇〇), and is not limited to the embodiments of the following figures.

As shown in FIG. 2, it is an embodiment of an active power factor correction circuit, characterized in that in addition to the active power factor correction circuit (110), an auxiliary power source (111) is added, and the auxiliary power source (111) is added for the purpose of providing External and internal control circuit (5〇〇) and DC power supply B+ of feedback and protection circuit (400). The active power factor correction circuit is characterized by the power factor of the boost circuit. The front end is connected with an Electro-Magnetic-Interference Filter to reduce the lack of electromagnetic interference and stabilize the DC high-voltage VH output. The wire work can correct the integrated circuit (IC1) by using an active power factor correction circuit such as the TDA4862 model and the equivalent function. The DC power output of the auxiliary power supply has two terminals, which is _ ' - the manuscript is received by (4) the money Wei W, and the R terminal is controlled by the straight end. When the J terminal has a positive voltage, the SCR is turned on, causing the transistor to be turned on. (TR1) There is no output voltage at the r terminal. At this time, the relay (Relay) stops, and the whole circuit is in the OFF state, and the circuit protection is performed. As shown in Figure 3, it is the high frequency slot circuit of (4), DC or AC high voltage supply circuit, load carrying, 峨 and 赖 circuit and external oil control circuit.

^ Example. As can be seen from the figure, the high-frequency vibration circuit 〇2〇) seems to adopt the self-vibration after the half-bridge drive integrated circuit (Self Qsdllating (4) B

Dnver) '如(四)53, Cong 55, MC stage 6 or MCI·, etc., can also use pulse wave vibration road, D-type positive and negative device and high and low side duck integrated circuit and Low Suie Dover 1C), such as Congwei Bu Congxi 2, IR2u〇, 1307988 IR2113, IR2181 or IR21814 equivalent ic replacement, the oscillation frequency is determined by the oscillation frequency relationship resistance (RF) and the oscillation frequency relationship capacitance (CF); and is provided by the optocoupler The starting circuit (12i) composed of (Phi), the purpose of which is to make the load (300, here the laser tube) have sufficient ignition energy during the ignition process, and the ignition time is determined by the time constant resistance (RT1) and The time constant capacitance (CT1) determines, and the protection circuit (4〇2) composed of the photocoupler (Ph2), the purpose of which is to protect the circuit when the overcurrent or overvoltage occurs in the laser tube (300). (4〇2) The voltage comparison circuit (A2) outputs the J-terminal positive voltage, so that the relay contact of the relay diagram in Fig. 2 changes from the ON state to the 0FF state, and the overall circuit power supply is turned off. To achieve the purpose of protection; the 5th and 7th ends of the self-oscillating half-bridge drive integrated circuit respectively send pulse waves to push gold Oxide field effect transistors (Power M0SFETS) M1 and M2, while P〇wer MOSFETs Ml and M2 are called a set of fower MOSFETs, connected to the primary ring 2, 2 terminals of the high frequency transformer (122), with a half bridge The connection, the resonant frequency of which is caused by the resonant capacitor (c) and the resonant inductor (L), and the present invention uses its spectral frequency curve to take its ignition voltage and the selection of the guardian 2 is the fixed guard frequency. In the present invention, a full-bridge electronic ballast can be used without any frequency. With the same reason, the ignition voltage and the glow discharge voltage are also taken by using the resonance frequency curve.

As shown in Fig. 3, the DC or AC high-voltage supply circuit (2〇〇) is a red voltage doubler circuit composed of a diode group and an electric material, and the circuit can be doubled circuit and triple voltage circuit. , quadruple voltage circuit or multi-voltage circuit, depending on its needs, without self-limiting, characterized by the double side of the voltage doubler circuit ^«KB > C, > E, *( 3〇〇TO)L protection circuit (10)) fuse (Fs) and Jenus diode (ζ·, zw); its Zener diode (ZenerDi〇de 'th) is connected with shunt resistor (five) and variable The shunt resistor (R1) and the variable resistor (10) are connected to the current limiting resistor (R2) of the photoelectric coupling L, and the load (300) is connected in series with a constant current resistance (RS): to meet the load (10) The negative resistance characteristic of the glare discharge region, and the laser light pattern; its light f coupling H (ph2) ^ the greater the current flowing through the LED, the DC resistance of the secondary side FET of its 1307988 photocoupler (Ph2) The smaller the value, the feedback circuit (401) can use the variable resistor (VR2) to set the current value required for the required load (3〇〇) at the negative terminal of its feedback voltage comparator (A1); The current of the load (3〇〇) is larger than the set current When the voltage of the positive voltage terminal of the feedback voltage comparator (Ai) is greater than the negative terminal, the transistor (TR2) is turned on, and the control integrated circuit (IC2) of the high-frequency oscillation circuit (12〇) is stopped. Down) 'The secondary winding (B, C terminal) of the high-frequency transformer (122) has no voltage output, so the output voltage (D, E terminal) drops; when the current to the load (300) is less than the set current, the transistor (TR) The magic becomes the 〇FF state, and the secondary ring (B and C terminals) of the high-frequency transformer (122) has a voltage output, so the DC voltage of the output voltage (D, E terminal) is quickly established, and the load (10) is achieved. Constant current control; due to the constant current control of the load (), the steady current resistance (RS) can be removed, and the load (3〇〇) efficiency is improved. As shown in Figure 3, the feedback and protection circuit (400) In addition to the feedback voltage comparison: the voltage comparison circuit (10) is additionally provided with a Zener diode (ζ· Λ i ) 'connected to the sampling capacitor (CE). When the voltage of the sampling capacitor is charged , its photoelectric coupling (10)) and the overvoltage protection circuit (moving) J terminal output - positive voltage, over-current = companion state, the same can also With the variable resistor (10)) setting ί目=ϊί, in addition to the above, there is a time delay circuit contact, the purpose is to operate the lamp when the circuit is turned on, after the load (3〇〇), the feedback and protection circuit (400) = ^ ϋΊLoad (300)fe Modulation variable resistor (VR4) Time-of-flight capacitance (α?2) capacitance value plus control ΐ 'External or internal control circuit (10)) is set to i degree and pulse wave The pulse of the (4) is the pulse wave _ (Ph3) LED, the pulse port f is the pulse wave input control photoelectric light-heeling wave wheel, the photoelectric coupler (Ph3) LED is bright '1307988 fine 3) power supply In the high-frequency recording circuit (10), start the electric fire, glow illuminating l ·,: protect the road (4 〇〇) 'At this time the load (300) will enter the point of continuity of the knowledge of the alpha process. If the pulse wave disappears, the load (300) is de-energized; if the pulse wave is directed to the inner side, g'=load (300) also acts with it. And the selection switch (S1)

Vi °6 « 雷 mw 辉红域电屋' is also the load (_ the working cycle rT3^TM cycle embodiment 1, the second base: j: = does not contain the starting circuit ((2)), its operating principle = circuit (10) ) d, e end generates DC high 2 series or more Λΐ;, slit power supply vdc 2 DC high voltage power supply TO: is characterized by its voltage value ^, its setting purpose is the time or pulse (four) fire time, which is to speed up The load (10)) enters the glow discharge, & the basic DC seam power supply TO is lower than the load (10)G). ^ ^ : The circuit operation principle shown in Fig. 3, the function of which is shown in Fig. 6, is the fifth invention As can be seen from the function timing diagram of the figure, the basic DC Kelly power supply VDC is lower than the glow discharge & the second VI has the effect of the basic DC high voltage power supply VDC as the bottom, and up to two g of fire and accelerate into the glow discharge area. As explained in Figure 4, its 1st 12th

1307988 The period of the second pulse wave is T2_T3, which may be equal or different from the second pulse wave T4-T5, depending on the demand. - Lion, for the (4) plus the basic money pressure power supply embodiment 丄 θ, which is different from the fifth picture in the basic DC power circuit, (1 transformer (122) with multiple sets of secondary rings, which are used The same straight two-flow J-voltage supply circuit (_. It is characterized in that the high-frequency fast diode used is a diode with a large rated current, and the capacitor can be used for a large capacity to enhance the filtering effect. The purpose of DC high voltage power supply is reached. The number of secondary ring groups of the basin frequency transformer (122) depends on its demand, and is not self-limiting. The load _) can be applied to DC laser power or backlight (4) LED group Acceleration of time and time. ^ As shown in Figure 8, the high-frequency oscillator circuit, load, feedback and protection circuit and external fore part control circuit of the present invention are practical. The characteristics of this circuit are in Figure 3 DC or AC high voltage supply circuit (2〇〇) double voltage circuit is removed, 'and steady current resistance (RS) is changed to high frequency capacitor (cs); and a high frequency full wave rectifier circuit (DG) is added to supply DC Current is applied to the optocoupler (ph2), and high-frequency high-voltage power is supplied to the 贞⑽) purposes. @本贞(10)) is the load (300) for the high-frequency high-voltage power supply, and the rest of the operating principles are the same as those in Figure 3, and are described in detail. As shown in Fig. 9, an embodiment in which the high-frequency voltage output is controlled by the voltage amplitude modulation (??11; which Amplitude Modulation, VAM) method is used in the present invention. The output terminal of the feedback voltage comparison circuit (A1) of Fig. 7 is connected to the LED end of the primary side of the photoelectric handle (Ph4), and the secondary side FET is terminated to the active power factor correction circuit (110). The active power factor correction circuit (110) is characterized by a combination of boosting and pulse width modulation or a combination of boosting and pulse width modulation, and the FET characteristic of the photoelectric coupler (Ph4) is linear resistance change. The characteristic is connected to the pulse width modulation control end at both ends to change the pulse width modulation DC input voltage, and to control the DC south voltage output voltage VH, thereby controlling the high frequency transformer (122) 13 1307988 times The frequency of the frequency of the stage (both B and C) is such that the load (3〇〇) obtains a stable set current value. The rest of the operation principle is the same as that of Fig. 7, and the second embodiment is shown in Fig. 10, which is an embodiment of the present invention having a constant voltage and constant current control DC high power supply. As is apparent from the figure, an embodiment in which a constant voltage output is controlled by a voltage amplitude modulation (VAM) method is added to the circuit embodiment having a fixed money control function in Fig. 5. The principle of the constant current control action has been stated before, and will be described again. The principle of controlling the voltage by the voltage amplitude modulation (VAM) method is as follows: the reference voltage is taken from both ends 自 and E of the self-sampling capacitor (CE), and input to the photoelectric coupler (Ph4). The functions of shunt resistor (R3), current limiting resistor (R4) and variable resistor (VR5) are the same as those of shunt resistor (R1), current limiting resistor (R2) and variable resistor (VR1). When the output voltage of the Μ and E terminals is higher than the voltage of the upper limit voltage comparison circuit (4〇4), when the negative terminal of the integrated circuit (A3) is compared, the LED of the photocoupler (ph5) is turned on, and the secondary side FET is turned on. At this time, the DC high-voltage VH output of the active power factor correction circuit (1) 〇) is lowered, and the high-frequency voltage-suppressing circuit (10) of the high-frequency vibration circuit (10) is controlled to lower the output voltage of the B and C terminals, and the DC high-dust output is lowered. The setting of the upper limit voltage value can be performed by the variable power group (VR6); the active power, the correction circuit (119) can be used to manufacture a boost type or a boost type and a combined type circuit or Boost and pulse width modulation separate type integrated body power, 'Aberdeen, its manufacturer's specifications, its choice is not self-limiting; when the sampling power, E end) Μ, E take out the reference voltage is too low , the voltage of the lower limit voltage is compared with the voltage of ^5 = 0). The secondary side FET of the photocoupler (four 4) of the integrated circuit (A4) is turned on. At this time, the DC output of the active power factor correction circuit (110) is *, The output voltage of the B and C terminals of the high-frequency transformer that controls the high-frequency vibrating circuit (10) rises, and the DC high-voltage output rises. The purpose of the lower limit voltage value is set by the variable resistor (surgery) is responsible for the. The flow height has the control of constant light and constant current control. ^tit Λ 可 其 其 其 其 其 其 其 其 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第An embodiment. The principle of the control voltage of the current has been described before, not 14 1307988 f; its operation principle controlled by the voltage amplitude modulation method is: from high frequency, the secondary ring of the device (122), the rectified dipole Body (]) 2) to] (end, its κ, c terminal is the reference voltage, which is input to the photocoupler (Ph7), where the shunt resistor (R5), current limiting resistor (R6) and variable resistor (VR8) The function is the same as the shunt (R1), limit, resistor (R2) and variable resistor (VRi) functions. When the output voltage of the K and c terminals is higher than the upper voltage comparison circuit (4〇4), the voltage is integrated. When the negative terminal of the circuit (A5), the LED of the photocoupler (Ph8) is bright, and the secondary side FET is turned on. At this time, the output of the DC high voltage VH of the active power factor correction circuit (110) is lowered, and the high frequency oscillation circuit is controlled. (120) The high-frequency transformer (122) B, C terminal output power ^ is reduced, and the AC high-voltage output is reduced. The upper limit voltage value can be set by the variable resistor (VR9), and its active power factor correction Circuit (HQ), can be combined with boost (Boost) or boost and pulse width modulation integrated circuit or The step-up and pulse width modulation separation type integrated circuit depends on the specifications of the manufacturer, and its selection is not self-limiting. When the reference voltage K and C terminals are too low, the f lower limit voltage comparison circuit ( 405) The voltage comparison integrated circuit (A6) LED Brahman's secondary side FET is turned on, at this time, the active power factor correction circuit (1) 〇) DC high voltage VH output rises, and the high frequency oscillating circuit 〇2〇) The output voltage of the B and C terminals of the frequency change voltage (122) rises, and the AC high voltage wheel rises. The lower limit voltage value can be set by the variable resistor (VR1〇). As shown in Fig. 12, the embodiment of the present invention applied to backlight illumination, as shown in the figure, is identical to the operation principle of the U-picture, and only the B and C terminals of the high-frequency transformer (122) are loaded ( 300) Changed to a combination of Cold Cathode Fluorescent Lamps 'CCFL' or External Electrode Fluorescent Lighting (EEFL), characterized by a frequency-only voltage regulator (122) The B and C terminals, that is, the surface frequency to the pressure end and the cold cathode fluorescent lamp or the eve/end electrode tube fluorescent lamp are all connected in parallel, and the cold cathode fluorescent lamp or the outer electrode tube fluorescent lamp and B, C The high-frequency capacitor (CS) is connected between the ends, and the cold cathode fluorescent lamp or the outer-end electrode tube fluorescent lamp is connected in series with the high-frequency capacitor (CS), and is connected to the B and C terminals, and is fed back. The comparison circuit (4〇1) is at the negative 15 1307988 of the feedback voltage comparator (A1). The variable resistor (VR2) can be used to set the current value of the cold cathode fluorescent lamp or the external electrode tube fluorescent lamp. That is, the dimming current value is obtained, and the required cold cathode fluorescent light or the backlight brightness of the outer end electrode tube fluorescent lamp is operated as a cold cathode fluorescent light. When the current of the fluorescent tube of the end electrode tube is larger than the set current, the voltage of the positive terminal of the feedback voltage comparison state (A1) is greater than the negative terminal, so that the transistor (Ding) is turned on, and the high frequency oscillation circuit (120) IC2 stops oscillating (Shutd〇wn), the secondary ring (b, c end) of the high-frequency transformer (122) has no voltage output; if the cold cathode fluorescent lamp or the external and electric (4) light m, the slave current At the time, the transistor (when it becomes the OFF state, and the secondary of the high-frequency dragon H (122), (^ end) has a high frequency of high hope, so that the cold cathode fluorescent wire or the outer end miscellaneous tube t illuminates, Broken, wave, can be used in TFT LCD TV, advertising lighting and large LCD monitors = photo · _ and other uses 'Xia Zhen _ change (blue) New control $ output embodiment has been described in Figure u, I will not repeat them; it can be seen from the above that except for the cold cathode fluorescent filament or the outer electrode fluorescent lamp, the operation principle is exactly the same as that described in the U-picture. The external terminal voltage control circuit diagram of the present invention, the current output control circuit of (A) diagram ίίϋ, FIG. 11 is replaced by a resistor (V2) in the form of a photoelectric coupling method. Yes, when the voltage (Vin) is increased, the value of the step-down resistor (four) becomes smaller, and the value of the feedback circuit is higher. The higher the output level of Ay is, the higher the load of the load (3〇〇) is. Voltage control 'the same reason can also use the photoelectric light combiner (Ph10) with positive ^ 5, Luo short ^ 8) both ends to become the anti-logic voltage control 'its mining or anti-logic, voltage control, with demand However, it is not self-limiting, and the rest of the movement 10 is the same as that described in Figure 11; it is not described in detail; its (9) diagram shows the pressure resistance i, the photoelectric method changes the value of @q ι and replaces the first one. Figure variable resistor (VR6,

Please use the function of variable resistor (VR9, vrio) of .w A. When the external input is increased, the step-down resistor (review voltage of R 10 is compared _, Μ), and the back of n) ^压^1307988 The higher the output level of the device (A5, A6), the higher the supply voltage of the load (300) becomes the positive logic voltage control. Similarly, the optocoupler (Phll, Phl2) can be transferred to The resistors (Rll, R12) become the inverse logic voltage control, and the other operating principles are the same as those described in Fig. 10 and Fig. 11, and the value of the external terminal voltage (Vin) is determined by the demand. Without self-limiting. As shown in Fig. 14, the embodiment of the present invention is applied to a plurality of sets of high-frequency transformers in Fig. 7. As can be seen from the figure, in the basic DC power supply circuit (123), two sets of independent high-frequency transformers (122) are respectively Execute the output of high-frequency high-voltage, which is characterized by the independent rlj frequency change of the ^ ̄ group can be independent of the high H edge, to mention the electric output of the invention according to the invention, the number of groups can be determined according to the demand, without self-limiting The same as ^, which has the characteristic advantages of multiple sets of independent high-frequency transformers 022), can also be applied to the south frequency vibration circuit (120) without self-limiting. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The ignition voltage of the discharge tube lamp, the pulse voltage, or the voltage, the intermittent DC voltage or the high frequency light. The circuit is supplied by the electronic ballast or the power converter. Protection of voltage and overcurrent and reaching a constant current or fixed voltage; at the same time, there are external and internal control circuits, so that the work of the 3 field-fired load is required for the invention to be rich and available to the industry. Should be in line with the special office, please, the ^ ^ Gong Gong = patent, please review the award of the invention patent, 17 1307988 _ [Simple diagram of the diagram] Figure 1 is a block diagram of the laser power supply device of the present invention. Figure 2 is an embodiment of the active power factor correction circuit of the present invention. Fig. 3 is a view showing an embodiment of the high frequency oscillation circuit, the direct current or alternating current high voltage supply circuit, the load, the feedback and protection circuit, and the external and internal control circuits of the present invention. 4 is a functional timing diagram of the third diagram of the present invention. Figure 5 is a first embodiment of the present invention plus a basic DC high voltage power supply. F6 is a functional timing diagram of Fig. 5 of the present invention. 7 is a second embodiment of the present invention plus a basic DC high voltage power supply. Figure 8 is a diagram showing an embodiment of the high frequency oscillating circuit, the load, the feedback and protection circuit, and the external and internal circuit control circuits of the present invention. The f 9 diagram is an embodiment of the invention for controlling the high frequency voltage output using the VAM method. Fig. 10 is a view showing an embodiment of a DC high voltage power supply having constant voltage and constant current control according to the present invention. Fig. 11 is a view showing an embodiment of an alternating current high voltage power supply having constant voltage and constant current control according to the present invention. Figure 12 is an embodiment of the invention applied to backlight illumination. Figure 13 is a circuit diagram of the external terminal voltage control circuit of the present invention. #图14 is an embodiment of the present invention applying a plurality of sets of high frequency transformers in Fig. 7. [Main component symbol description] 100 high frequency power supply circuit. 110 active power factor correction circuit. 111 auxiliary power supply. 120 same frequency vibration circuit. ; 121 start circuit. *! 22 high frequency transformer. 18 1307988 123 basic DC high voltage power supply circuit. 200 DC or AC high voltage supply circuit. 300 load. 400 feedback and protection circuits. 401 feedback comparison circuit. 402 overvoltage protection circuit. 403 time delay circuit. • 404 upper voltage comparison circuit. 405 lower limit voltage comparison circuit. 500 external and internal control circuits. > A1, A2 voltage comparison circuit. CE sampling capacitor. CF, CF2, CT1 time constant capacitance. CS high frequency capacitor.

Dl, D2 rectifier diode. DG full wave rectifier circuit.

Fs fuse. The IC1 active power factor corrects the integrated circuit. IC2 self-oscillating half-bridge drive integrated circuit. L inductor. Μ M M2 metal oxide field effect transistor. PM,,, Phl2 optocouplers. IU, R3, R5 shunt resistors. R2, R4, R6 current limiting resistors. 19 1307988 R7, , , , R12 step-down resistors. RS steady current resistance. RT1 time constant resistance. S1 selector switch. TR1, TR2, TR3 transistors. VR1, , VR10 variable resistors. ZD Bu ZD2 Jenus diode.

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Claims (1)

1307988 X. Patent application scope: I—A kind of DC laser power supply device, including at least: The south frequency power supply circuit: consists of a boost type wire function correction circuit circuit to provide external and internal control ^ and ^ protection Circuit money power supply; peach and mouth plate and DC high voltage supply circuit: consists of - or a plurality of diodes and - or a plurality of = consisting of a circuit, the purpose is to convert the power supply provided by the high frequency vibration plate ^ into After DC high voltage, power is supplied to the load; The feedback and protection circuit is composed of a feedback comparison circuit, an overvoltage protection circuit and a delay circuit. The protection is fixed by the protection of the tonnage load. The external and internal control circuits are used for the control and load receiving operation. Time, the pulse of the system is characterized by the width of the pulse wave and the distance between the pulse wave and the pulse wave, in order to perform the work demand of the load, so that the load can be optimally optimized and the quality; and the load. 2. For example, the DC laser power supply device of the patent application range 177, j: the medium load can be ίίΐϊ tube lamp or argon ion laser discharge tube lamp or two-carbon laser or purple=stone laser discharge tube lamp or red f stone laser discharge tube lamp or sapphire laser discharge ^ official lamp or Er: YAG laser discharge tube lamp or H0: YAG laser discharge tube lamp or ^ molecular laser discharge tube lamp material #射放ff lamp or discharge A discharge tube lamp for tube lamps or lamps or an LED group for backlights. 3. If you apply for a patent scope! The DC laser power supply device of the item, wherein the rising of the high-frequency power source f_main_factor correction circuit can be a combination of Zhao and pulse width modulation (PyM) or boost and pulse width modulation (pWM) type. A DC laser power supply device as claimed in claim 1, wherein the high frequency power supply circuit is an electronic ballast. 5. The DC laser power supply device of claim 4, wherein the high frequency power supply circuit is a half bridge electronic ballast. 21 1307988 Flow laser power supply device' DC laser power supply device with high frequency power supply, wherein the high frequency power supply is calibrated with auxiliary power supply for the purpose of providing a circuit and feedback and protection circuit DC power supply. The DC laser power supply device with the first item of the 々I patent dry circumference, wherein the high-frequency power supply can reduce the power amplifier correction circuit front end with an electromagnetic interference filter, the lack of interference, and a stable DC High voltage output. Refer to the DC laser power supply unit of item 1, in which the high frequency power supply line controls i. The fascinating power is corrected by the calibration circuit. The DC laser power supply device of the first part of the patented scope is corrected. The high frequency mine in the basin is 'semi-i type: ϊίϊ, and the circuit is half bridge type (four) circuit Drive integrated pulse wave oscillating circuit, D-type positive and negative device and high and low lh source 1 item; _ electric immersion, high-frequency electric full-bridge drive "body bridge type (four) circuit, _ self-vibration drive A product of a 43⁄4 oscillating circuit, a d-type flip-flop, and a high- and low-level (four) or 直流-directed DC laser power supply device, wherein the relationship resistance * shouts the oscillating circuit 'the oscillation _ is caused by the oscillation frequency and the yaw rate Secret capacitance mosquito. Which of the hands of the high-frequency power of the DC laser power supply, in which the start-up circuit, the vibration on the road and (4) the combination of the electrical energy. 〃, in the process of making the load in the process of ignition, there is enough DC laser power supply for the ignition circuit, where the starting power is determined as the patented resistor and the current fiscal capacitor. J. The first DC laser power supply unit of the first item, in which the secondary piezoelectric 22 !3 〇 7798 has a positive voltage, and the overall circuit is turned off (0FF). The DC laser power supply device of the 21st patent range, in which the feedback is compared with the (4) bribe county to set the overcurrent protection. Please apply the DC laser power position in the first item of the patent range, in which the feedback disc ίίί I, the thief delay circuit 'its purpose is to execute when the circuit is turned on, and the negative '% two hearts' need to wait for the load to stabilize, then the feedback and protection circuit Start the action. (4) The DC f-radiation power supply device of the 24th patent range, in which the feedback and the number of capacitances are ΐϊϊί: the road's delay time is determined by the variable resistance and time; 26.= The DC laser power supply device applying for the range 1 is applied, The external or circuit selects the external material 'the pulse wave is supplied by the outer end to control the DC laser wire of the 26th item in the load 27·, and the external or the internal path is selected internally, then the internal pulse wave is generated. The device controls its load 28·straight (four) 1 item of DC poetry 1 source device, and further includes the basic circuit' consisting of a high frequency transformer, a half bridge slot circuit and its ?q circuit and another group of DC high voltage supply circuits. The scope of the patent is 帛28 J members of the DC laser power supply unit's half-bridge type. The circuit and its driving integrated circuit are full-bridge oscillating circuit and its driving integrated body. The DC laser power supply device of the 28th or 29th patent range of the patent, wherein the f supply circuit can adopt two or more groups as needed. In series, it is the basic DC high voltage power supply. 1 In the case of the text 31, please use the DC laser power supply of the 28th or 29th section of the profit range. The value of the straight piezoelectric_road in A is lower than that of the load glow discharge. 32. Or 29 DC laser power supply devices, of which 24,1307988 ίίίίΐϊίί Co., Ltd.'When the reference element is higher than the upper limit, the voltage is compared with the voltage of the electric circuit, and the photoelectric light combiner (4) ^The secondary side FET is turned on. At this time, the active power is corrected by the DC of the correction circuit: the lower frequency of the high frequency transformer of the high frequency vibration (four) is controlled, and the DC high voltage output is reduced. Handle ^ 凊 Patent Range No. 38 of the DC laser power supply device, its active power due to body power and 2 device boost type or boost and pulse width modulation combined type circuit or boost and pulse width modulation separation Type integrated circuit. Grab Hi patent? '39th DC f-power supply device, when the active power is integrated, the lower limit voltage comparison circuit of the battery is compared with the LED of the inverter, and the secondary side is turned on. The high frequency of this circuit is: , the second control high _ l of the purpose. The output voltage rises and reaches the DC high recording 丨in the third paragraph of the money miscellaneous miscellaneous, the electric dust amplitude integrated circuit lower voltage comparison circuit voltage comparison when the active power due to ^ two two soil · et conduction, this = frequency transformer "; To the high voltage direct power supply device of == 44· electric item, the reference is taken out from both ends of the sampling capacitor, or by the high frequency transformer 2 45. For the DC laser power supply device of the 39th patent scope of the patent, the reference voltage 26 1307988 can be taken out from both ends of the sampling capacitor, or can be taken out from the secondary ring of the high-frequency transformer. 46. For example, the DC laser power supply device of claim 1 or 17 of the patent application, wherein the comparison circuit is driven by the light wheel The method is to change the miscellaneous value of the material pressure resistor, and replace the function of the y-variable resistor. When the external input voltage is increased, the value of the step-down resistor becomes smaller, and the output of the integrated circuit is higher. The flow of electricity /, the larger the IL, becomes the positive logic electric control. 47. If the application of the patent scope 帛 46 of the DC device is connected to the two ends of the voltage drop resistor, and become H power _ port 48. Patent fine 1 or 17 (four) Lai Λ;, ί 盆 basin back = feedback voltage With the === electric voltage is higher, it becomes a positive logic voltage control. The DC laser power supply device of the supply of the 贞戟 将 将 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 光电 50 50 50 50 50 50 50 50 50 50 50 The laser power supply device includes at least: a high-frequency power supply circuit: it is composed of a female social power #路, which is used to converge the & electric ridge and the same frequency vibration 1 electric protection circuit ΐ ίί: hidden internal control circuit and feedback And the high-voltage high-voltage county H and the high-frequency high-voltage feedback and protection circuit: by the feedback than the thunder and thunder battle, the delay circuit and the time flow power supply to the load of the load; Ganglu: Loss (4) Compared with electricity = wave = pulse width and pulse wave and quality and = work demand, can make the best wear efficiency. 51. For example, the 50th exchange laser Power supply unit, where the load is 27 l3〇7988 氖Laser discharge tube lamp or argon ion laser discharge tube lamp or carbon dioxide laser or 紫翠^石雷 discharge tube lamp or ruby laser discharge tube lamp or sapphire laser Discharge tube lamp or EnYAG laser discharge tube lamp or HO:YAG laser beam Tube lamp, or molecular laser discharge tube lamp or dye laser discharge tube lamp or illumination discharge tube lamp or LED tube group for backlight discharge lamp or backlight, etc. 52. Exchange of the fifth paragraph of the patent application scope The laser power supply device, wherein the boosting active power factor correction circuit in the high frequency power supply circuit can be a combination of boost and pulse width modulation or a combination of boost and pulse width modulation. «ft 53·If applying The AC laser power supply device of the 50th patent range, wherein the high frequency power supply circuit is an electronic ballast. 54. The AC laser power supply device of claim 53 wherein the high frequency power supply circuit is a half bridge electronic type. Ballast. % 55. For example, the AC laser power supply unit of claim 1 is a full-bridge electronic ballast. 56. For example, in the AC laser power supply device of the fifth aspect of the patent application, in which the high frequency power is applied, the boost type active lag correction circuit in the circuit is provided with an auxiliary power supply for providing external and internal control circuits and feedback and protection. DC power supply for the circuit. 57. If the AC laser power supply device of the fifth paragraph of the patent application scope is applied, the front end of the step-up active power factor correction circuit in the i/high frequency source circuit is connected with the electric interference state to reduce the lack of electromagnetic interference and stabilize the DC. High voltage output. ~ 58. For the AC laser power supply unit of the 5th item of the patent application, the boost active power factor correction circuit in the source circuit of i uses the active two circuit to control. Only the integrated body of the mouth is 59. As in the AC laser power supply device of the fifth paragraph of the patent application, the high frequency oscillation circuit in the bean source circuit is a half bridge type vibration circuit, a half bridge type driving integrated circuit or a pulse wave. The oscillating circuit, D-type, and the edge-driving integrated circuit are used for control. & anti-counter money and low 60. If the AC laser power supply device of the fifth paragraph of the patent application scope is applied, the high-frequency vibration circuit in the basin source circuit-full bridge type slot circuit adopts = vibration 28 1307988 ==3⁄4嶋 circuit, D-type flip-flop and high- and low- or 6Q AC f-power supply devices, of which two electric frequency vibrating circuits, the vibration frequency is determined by the vibration frequency relationship between the resistance and the oscillation frequency Decide. 62古如巾μ Patent scope 59 or 60 of the AC laser power supply device, wherein m, the high-frequency oscillation circuit in the road and the start-up circuit composed of the photoelectric surface and the device are used to make the load There is enough ignition energy during the ignition process. ‘. For the AC laser power supply unit of claim 62, the timing of the start-up circuit is determined by the time constant resistance and the time constant capacitance. 64. ^Application of the 50th scope of the AC laser power supply device, wherein the higher the current flowing through the LED of the photoelectric coupler in the feedback and protection, the secondary side FET of the optical coupler The smaller the DC resistance, the feedback comparator can use the variable resistor to set the current value required for its required load at the negative terminal of its feedback voltage comparator. VIII. 65. For example, in the AC laser power supply device of claim 64, when the current of the load is greater than the set current, the positive & the & voltage of the feedback voltage comparator is greater than the negative terminal, and thus the electricity When the crystal is turned on, the oscillating integrated circuit of the high-frequency oscillating circuit stops swaying, and the secondary winding of the high-frequency transformer has no voltage output, and thus the output voltage drops. 66. The AC laser power supply device of claim 64, wherein when the current of the load is less than the set current, the transistor is in an off state, and the secondary coil of the high frequency transformer has a voltage output, so that the output The DC power is quickly established and the load is controlled by a constant current. For example, in the AC laser power supply device of claim 50, in which the steady current resistance can be removed due to the constant current control of the load, and the load efficiency is improved, and a high frequency full wave rectification circuit is added to supply the direct current to the photoelectric coupling. The device performs high frequency and high voltage power supply for the purpose of the load. 29 1307988 The AC laser power supply device of the 50th patent scope, wherein the feedback protection circuit is removed from the secondary voltage loop of the high frequency transformer except the feedback voltage comparison circuit and the voltage comparison circuit. Refer to the AC# radio power supply device of the 68th patent scope, in which the reference voltage of the feedback disc fi is greater than the value of the subsense voltage of the sinus diode, the LED current of the optical amplifier is greatly increased. The voltage protection circuit inputs positive lightning and the overall circuit is in the 0FF state. _Positive voltage ‘The item of the AC mine (4) position, the shot back and the protection 4 circuit reference voltage can be taken out from both ends of the sampling capacitor. 71. = Application for patent range (4) or 7 item of AC laser power supply, 72. Line m substation with overcurrent protection function The time delay circuit in is road, whose purpose is to execute when circuit 73. The protection circuit is activated. ' (4) = specializes in the 72th AC laser power supply device, in which the delay circuit of the 典 典 典 虹 , , , , , , , , , , , , , , , , , , 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调AC resistance and 4 internal 丨 丨 围 围 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 交流 交流 交流 交流 交流 交流 交流 交流 交流 交流 交流 交流 交流Two-frequency oscillation electro-optical discharge and other processes. 1 The circuit load will enter the ignition, glow external or work timing. ^ The internal pulse wave generator controls its load. 76. The circuit of the 64th item of the patent application scope compares the feedback voltage in its feedback voltage, and the device, in which the feedback power is higher than the #« wheel. Connect the 30 1307988 led terminal on the primary side of the photoelectric cake and the secondary side FET is connected to the active power factor correction circuit. For example, in the AC laser power supply device of claim 76, wherein the active power is positive, the road is characterized by a combination of boost and pulse width modulation or a boost and pulse width modulation separated active power factor correction circuit. . 78·命如申^ Patent Range 76 or 77 of the AC laser power supply device, its optical characteristics are linear resistance change characteristics, and its ends are connected to the pulse modulation control terminal to change its pulse width modulation. Variable DC input voltage, to achieve f control DC high voltage output voltage is large,],, lie to control its high frequency transformer - the south frequency voltage of the human circle, and make the negative cake to a stable set current value. The AC laser power supply device of the 5Gth item further includes an active power factor correction circuit for the voltage setting output, which comprises 80. The AC laser power supply device of the 79th patent only, wherein the feedback is removed; The voltage comparison circuit and the voltage comparison circuit are separately provided; 嫂-, 'connected, the secondary ring tap of the south frequency transformer is 经 ^ ', which is the secondary end of the high-frequency transformer The voltage is a reference. #由专利范(四)79 items of the AC laser power source is set, in which the active power tool boost type or boost and pulse width modulation combination type 8 v; Shen r /; flap 8G item __] When the reference voltage ί ίίι is bright, its secondary side fet is turned on, at this time, the output of the active power factor is lowered, and the output high-frequency circuit is controlled to be lower than the output of the high-frequency circuit, and the output voltage of the high-voltage output is reduced by 83. In the alternating laser power supply device of item (10), when the voltage of the reference voltage ΐϋΤΓΐ comparison circuit is compared with the _, the person, and the FET of the integrated circuit, the output of the active high-voltage 1307988 VH of the active power factor correction circuit rises, and the control is performed. The high-frequency transformer of the high-frequency oscillating circuit rises, and the AC high-voltage output rises. The AC laser power supply unit of any of the items 79 to 83 of the patent scope, wherein the load is a plurality of cold cathode fluorescent lamps (CCFLs) or a plurality of external fluorescent lamps (EEFLs). 85 Techniques, such as the AC laser power supply unit of the 84th patent range, in which a cold cathode fluorescent lamp or a plurality of external electrode tube fluorescent lamps are connected in series with a high frequency capacitor. 86. If applying for the AC laser power supply device of the 84th special-purpose division, the feedback comparison circuit can set the cold cathode, the fluorescent light, or the outer end f to the fluorescent light at the negative end of the feedback voltage comparator. The current value of the lining needs to be adjusted, and the backlight of the cold cathode fluorescent lamp or the outer electrode tube fluorescent lamp is required to be bright. The earth magnetic t is the AC laser power supply device of the 86th patent range. When the cold cathode is fired, and the current of the fluorescent tube of the i-end electrode tube is larger than the set current, the voltage of the positive terminal is greater than that of the negative terminal, so that the transistor is turned on, and the transistor is turned on, and the circuit is turned on. The integrated circuit stops the Shut down, and the high secondary ring has no voltage output. The door is dare to ask for the AC laser power supply device of the 86th patent range. When the current of the cold cathode fluorescent lamp is lower than the set current, the transistor is in the state of (4), and the secondary ring of the high frequency transformer. There is a high-frequency high-voltage, and the cathode illuminating or outer-end electrode tube lights up, which has a intermittent impact. 89. For example, the AC laser power supply device of the fifth or eighth aspect of the patent application, The circuit changes the resistance value of the step-down resistor by photoelectric coupling, and replaces the function of (4) resistance. When the external input voltage is increased, the value of the step-down resistor is compared with the output of the integrated circuit. The larger the machine is, the larger it becomes, the positive logic voltage control. The AC laser power supply device of the 89th patent scope shifts the photoelectricity to the two ends of the set-down resistor and becomes the anti-logic dust control. 32 1307988 _ The feedback is more than the 80-element AC laser power supply device, in which the generation of the variable resistors is mixed with the resistance value of (4) a, and the resistance value becomes smaller. When the input voltage of the Futian Bu terminal is increased, the step-down resistor is The electric power supply voltage is higher: the voltage comparator comparator has the higher level of comparison, and the load is 92. If the application & _ = = logic voltage control. The device is connected to a resistor, and the 91-position AC laser power supply unit is optically coupled to become an inverse logic voltage control. 33