TWI274464B - Integrated power supplier - Google Patents

Abstract

An integrated power supplier is provided to drive at least AC load. The power supplier converts the AC power source to the DC power source and delivers the converted DC power source to the AC load directly. Therefore, an additional inverter is not needed, and the volume of the power supplier is reduced and the cost of which is decreased. Besides, a DC power source from the power supplier is delivered to a DC load directly through increasing the windings of the power supplier for integration.

Description

1274464 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to an integrated power supply, and more particularly to an integrated power supply for driving an AC load and/or a DC load. [Prior Art] The power supply disclosed in the prior art is as shown in Fig. 1. The first pulse controller 11 is located on the primary side, and receives the feedback signal of the DC load 5 2 on the secondary side, and outputs a control signal to control the pulse width of the first switch 2 1 to control the isolated transformer 3 1 DC output of the secondary side. The first changeover switch 2 1 receives the signal from the first pulse wave controller 1 1 and converts the input DC power source into an AC power source and supplies it to the isolated transformer 31. The isolated transformer 31 has at least one input winding and at least two output windings, wherein the input winding receives the AC power of the first changeover switch 21, and all of the output windings rectify the output to a DC power supply. At least one of the output windings is rectified to receive the signal, and is used as the feedback signal of the first pulse controller 11 and the at least one output winding is rectified and then supplied to the second switching switch 12. The second pulse controller 12 receives the feedback signal of the AC load 5 1 and outputs a control signal to control the pulse width of the second switch 2 2 to maintain the stability of the AC output. The DC power source outputted from the isolated transformer 31 is converted into an AC power source via the second switching switch 2 2, and is converted to an AC power source via the transformer 41 to be used for the AC load 51. A diode D 1 is connected in series between the isolated transformer 3 1 and the second changeover switch 1 2 . A diode D 2 is connected in series between the isolated transformer 3 1 and the DC load 5 2 .

Page 6 1274464 V.·Inventive Notes (2) I. The development of liquid crystal display technology, “The power source disclosed in the former technology is in some technical problems that need to be solved urgently. For example, for LCD TVs, the overall consumption of the I, π η 丨 backlight tubes is large, and the intrinsic power is about 90 watts due to the U used.匕2, the remaining wattage is the power consumption required by the control circuit. In addition, there are similar problems for large-size displays. The power supply used for the /machine load is AC power, because , :: The cost of the power supply architecture of the conversion of the level switch is too expensive. [Inventive content] 丨 ΐ ::: i = ask?: The main purpose of the present invention is to provide - Second, ........, to solve the problems or shortcomings of the prior art, ::Electric: 大部分 ΐΐ ΐΐ ΐΐ 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分 大部分The power received by the power supply is converted, for example, by the use of a cold cathode fluorescent lamp, and the integrated current disclosed by the present invention is supplied to the patient. The above pulse wave controller, in order to connect to the death = and then the load includes feedback No., and by means of a one-off system; '〆 级 level load output - ^又堡益, used to separate the power supply according to the control signal ^; and at least two groups of the body 1 * power conversion into - To the opposite of the intersection; ". to use the AC power supply to rotate the integrated current supply disclosed in the present invention: the embodiment, using the 7th page 1274464 5, the invention description (3) to drive two The above AC load and one or more DC loads include one or more first pulse wave controllers for receiving one of the feedback signals output by the AC load, and thereby outputting a control signal; a switch and a switch An isolated transformer for converting a direct current power source into an alternating current power source according to the control signal; at least two sets of driving lines for outputting the alternating current power source to the corresponding alternating current load, thereby driving the alternating current load; The two-pulse controller receives a feedback signal from the DC load and outputs a control signal; and a DC-switching switch that is connected to the DC-to-AC converter and receives The output of the DC power, and according to the control signal output of the second pulse controller for controlling the DC to DC switching duty ratio of the switching pulse (Du 1: y cy c 1 e). The integrated power supply disclosed by the invention can rectify and convert the AC power supply provided by the utility power to the AC load directly, without the need of an additional inverter drive, thereby saving the cost and volume of the power supply. By adding a winding method and simultaneously providing a DC power supply to the DC load, the power can be directly supplied to a display device, such as a liquid crystal display, for integration purposes. The detailed features and advantages of the present invention will be described in detail in the embodiments of the present invention. The contents disclosed in the specification, the scope of the patent application, and the drawings are understood. The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention.

Page 8 1274464 V. INSTRUCTIONS (4) [Embodiment] According to the principle of the present invention, for a high-power AC load, in order to simplify the design, the AC load is directly controlled by the pulse wave disposed on the primary side of the isolated transformer. For the control, please refer to FIG. 2, which is a circuit diagram of the first embodiment of the integrated power supply disclosed in the present invention. The integrated power supply disclosed in the present invention, that is, DC-to-AC The power supply system comprises a pulse wave controller 13 , an isolated transformer 3 2, a switch 2 3 , a plurality of driving circuits 4 2 driving the AC load 51, and each driving circuit 42 is, for example, driven. An AC load 5 1 shown in the figure can also drive more than one AC load. The AC load 5 1, for example, can be a cold cathode fluorescent lamp. The operation and functions of the integrated power supply shown in Figure 2 are detailed below. The pulse wave controller 13 includes at least one group that receives the feedback signal output by the AC load and outputs a control signal to control the duty cycle of the switching switch 23. The switch 2 3 includes at least one group that receives the output signal of the pulse wave controller 13 and converts the input DC power source into an AC power source and supplies it to the isolated transformer 32. The isolated transformer 32 includes at least one group each having at least one input winding and at least one output winding. The input winding receives the AC power of the switching switch 23, and the kettle converts the input AC power and outputs it. The output winding is for outputting the converted AC power to the drive line 42. Wherein the switch 23 and the isolated transformer 32 are combined to form a flow

Page 9 1274464 V. Invention Description (5) -_ AC converter, which can be, for example, the stock πη, baCk), (F〇r-^rd)^'^/^^ two l?. (Half partial ge), ... conversion, (FuU_bridge) ... and so on can convert DC to AC conversion; f drive line 42, for at least two M, each group contains at least _, ς. Pieces (such as: inductors or transformers) and a capacitor of the current and the AC load, forming a total of;;; a total of 1 and: = and the capacitive vibration characteristics drive AC negative, and use the resonance slot to separate from the use of | Load interference. The impedance of g isolates two adjacent I. When the number of AC loads 5 1 increases, the AC load can be individually oscillated. ::σ ^The number of lines 42 should be the AC load. In addition, =::2== pushes more than one of the AC loads 5 is promoted by the day. I, please refer to "3rd picture", which is the second of the invention The circuit architecture of the embodiment. Positive-port pen source for I-examples applied to AC load and DC negative::This:: Exposing the third way to generate DC output, so for two turns = by increasing the winding | and more than one DC load In order to respond to the parent flow load, the output drive line is to promote each load play separately, so it is necessary to exchange 'in accordance with the principle of the present invention, the second governor plus A ° flow and DC to DC power supply system: A dew DC transfer 丨I4, isolated transformer 32, switch 2, 匕=-pulse controller second pulse controller 15, DC to straight ^^ several drive lines 42, I and machine switch 33 〇

Page 10 1274464 V. Description of the invention (6) The composition, operation and function of the first pulse wave controller 14 , the switch 2 3 , the isolated transformer 3 2 , the drive line 4 2 are all in accordance with the first embodiment. , will not repeat them here. The second pulse controller 15 receives the feedback signal of the DC load 5 2 and outputs a control signal to control the pulse width of the DC-DC switching switch 34 to maintain the stability of the DC output. The DC-to-DC switching switch 3 3 receives the DC power output from the isolated transformer 3 2 and adjusts the pulse duty ratio of the output according to the signal output by the second pulse controller 34 (DU tycyc 1 e ). A diode D is connected in series between the isolated transformer 3 2 and the DC to DC switching switch 3 3 . DC load, the demand can be voltage: source, or current source. i "Drive Diagrams" in "Figure 2" and "Figure 3", each group containing at least one magnetic component (such as an inductor or a transformer) and a capacitor, for example, a capacitor, a resistor, or an inductor. A transformer, or a combination of its various single or series-parallel circuits, for use as an AC to AC conversion, as shown in Figure 4A, in series with capacitors Cl, C2 and L1, in parallel with capacitor C3. It can also be composed of capacitors Cl, C2, C3 and transformer T 1 as shown in Figure 4B, and as shown in Figure 4 C, capacitors C 1 , C 2 , C3 , inductor L1 and transformer The inductance L1 of the driving circuit shown in "4D" is connected to the primary side of the transformer T1. The integrated power supply disclosed by the invention can rectify and convert the AC power supply provided by the utility power to the AC load directly, without the need of an additional inverter drive, thereby saving the cost and volume of the power supply. And by adding a winding method, while providing DC power to the DC negative

Page 11 1274464 V. INSTRUCTIONS (7) For use, direct power supply to display devices, such as liquid crystal displays, for integration purposes. While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

Page 12 1274464 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a power supply disclosed in the prior art; FIG. 2 is a first embodiment of a circuit diagram of a power supply disclosed in the present invention; The figure is a first embodiment of a circuit diagram of a power supply disclosed in the present invention; and 4A to 4D are embodiments of a drive line of the power supply disclosed in the present invention. Schematic description] 4 11 first pulse controller 12 second pulse controller 13 pulse wave controller 14 first pulse wave controller 15 second pulse wave controller 21 first changeover switch 22 second changeover switch 23 Switch 31 Isolated Transformer 32 Isolated Transformer _ 33 DC to DC Switch 41 Transformer 42 Drive Line 51 Parent Load 5 2 DC Load C1 Capacitor

Page 13 1274464

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Claims (1)

Flat neighbor $ know (more) positive shell! _A 4------------- 寮 ι»-9^444^59- 夺-月--曰- H VI. Patent application scope 1. An integrated power supply for Driving more than two AC loads includes: one or more pulse wave controllers for receiving one of the feedback signals output by the AC load, and thereby outputting a control signal; a DC to AC converter for The control signal and the DC current output are an AC power source; and at least two sets of driving lines are used for outputting the AC power to the corresponding AC load, thereby driving the AC load; wherein the DC to AC converter comprises: The above switch is configured to receive an output signal of the pulse wave controller to control a pulse wave duty ratio (D uty eye 1 e) of the switch, and convert the DC power source into the AC power source; and more than one The isolated transformer, the isolated transformer has at least one input winding, and at least one output winding, wherein the input winding receives the AC power of the switch, and converts the AC power The output winding is output to the drive line. 2. The integrated power supply of claim 1, wherein the DC to AC converter comprises a returning converter (F 1 y - back ) 3 as claimed in claim 1 An integrated power supply, wherein the DC to AC converter comprises a forward converter (F 〇r -ward) 〇4. The integrated power supply according to claim 1, wherein The DC to AC converter includes a push-pull converter (Push-pull). Page 15 j I Laoyiqi repair (more) is replacing 撗π' ''~., one. One..-one one one ------------, -----^ Tiger-93-Chan 59————一-~"Year----h------{狂- 第 第 换 范 范 范 范 范 范 范 范 范 范 范Please apply for the right, such as the 6th 5th, the device should be supplied with the source type, and the converter will be replaced by the switch half--including the packager. g please flow di straight br such as the 6 in the device should be for the source of the electric type of the device to switch the bridge all 1 including the package less to the surrounding Fan Baoli Road; special line g please move i For example, if the device is to be supplied by the source and the source of the device, and the device should be supplied with the source and electricity, the N-item is included. "Shoubao JnJ - two _ piece special element please apply magnetic as the 8 device capacity 1 and the device sense the power in the device. The supply of the source and the source of the electric power type and the total pressure of the unit is a small item to 7 including the package elemental magnetic. The second paragraph Fan Li special request for the application of the first to the second or the enveloping The road pressure line changes to please apply for a drive, such as the device in the device should be supplied by the source type of electricity, the sense of the power unit, the electrical resistance and the electric series or one single capacity of each type of electricity Above the flow intersection, there is a second package. The carrier is used to supply the direct source. The current type is used to combine the whole type with a negative load. The signal is controlled by the receiver. The transmission is controlled by the company and the wave is transmitted. The pulse number is sent back to the top one and the other is the one that loses the load and the # control system controls the source to use the source to exchange the flow to the first to the outflow. A current is directly applied to the negative output current source, and the electric current is negatively connected to the AC system, and the device is controlled by the dynamic system, and the wave path is used for the pulse line, and the second movement is the first one. Group flow on the second intersection to reduce the one to one Page 16 I Fei Shu set # (more) is replacing it —---------^---^----日-------Pu Zhengwei directly and in the context Number|Back one, the one of the device is one--one system is closed, please apply for the coupling control, six cycles) One at least one input winding source after conversion 1 2 . If you apply for the DC one or two Extreme 1 3 . If you apply for the DC back) 〇1 4. If you apply for the DC ward) 〇1 5 . If you apply for the DC wave, change the y 乂 输 输 其 y y y y The person who cuts the pulse, presses the civic, and the string ^- ? ο turns to the second-order device D, changes the intermediate-crossing device C, and the C-flow is straight c:> Control ratio is 1 away, will. The supply is exchanged and exchanged, and the flow wave is empty, the U is separated, and the source of the source is turned to the flow: the pulse is occupied by one d, the line is electrically changed, and the line is connected. According to the wave h, the source type of the moving type is to the I number, and the system is equipped with the pulse. The power transmission and the clutch are combined with the source and the source control is 1 package, and the first-class one is the whole one. System, electricity with the y device with the switch has to be handed over to the control flow number yc change, open the original pressure less to say and describe the description of a direct message "transfer change: ^ change to the loss The package of the package is L. U - The system of the D-flow switch and the switch-off item is opened (4) (4) The switch is switched out and the control is exchanged. [>^Off, open-around 11-for-11 change 11 Straight and flow the ratio to the cutting compartment to exchange the first to the first turn, the direct flow of the control of the flow of the M, the bypass, the peri-environment, the encirclement of the flow, and the flow of the flow The straight-line converter communicates with the wave, so that the iE is connected to the integrated power supply described in item 11 of the profit-to-profit range, and the AC converter includes a push-pull Converter (Push- Page 17 1i#M4 repair (more) is replacing 裒 year - month - one by one - right - six, the scope of patent application pull). 1 6 . If you apply for the DC bridge) (1 7. If you apply for the DC bridge) (1 8. If you apply for the driver, the driver is 1 9 . If you apply for the magnetic 2 0. If you apply for the special Magnetic 2 1. As for the integrated power supply described in the driver, a variant of the range 1 to 1, the AC converter includes a half bridge converter (Hal f- range 1st item) The integrated power supply, the to-AC converter includes a full-bridge converter (Fu 1 1 - the integrated power supply of the above-mentioned item, wherein the circuit includes at least one magnetic component and one Capacitor. The integrated power supply of claim 18, wherein the component comprises at least one inductor and a capacitor. The integrated power supply of claim 18, wherein the component comprises at least one Transformer and a capacitor. The integrated power supply of the above-mentioned item, wherein the circuit comprises at least one capacitor, a resistor, an inductor, or a combination of various single or series-parallel circuits thereof. Page 18