TWM244645U - AC distributed power supply device - Google Patents

Description

M244645 V. Creation Instructions (l) [Technical Field to which the New Type belongs] This creation is about a power supply device, especially an AC decentralized power supply device used in computer equipment. [Previous technology] As the functions of modern electrical equipment become stronger and stronger, and the operating voltage specifications of electronic components are also increasing, the complexity of power supply systems has also increased. For the current power supply system used in computer equipment, a variety of DC voltages are required. In terms of the connection between most of the power supply and the motherboard of the computer device, the power supply obtains AC voltage from an AC power source Acy, and generates DC voltages of several voltage levels through the internal voltage conversion circuit. It is then supplied to the circuit board (computer motherboard) via a power connection cable and a power connector. In the prior art, in order to provide the DC power supply system and system with multiple specifications, most of them adopt the structure of a DC distributed power supply system (dc Dutnbuted Power System). The first figure shows a functional block diagram of the circuit of a conventional DC decentralized power supply device. This circuit structure is currently commonly used in liquid crystal computers (LCD_pc) or other computer equipment. In the circuit architecture of this traditional DC decentralized power supply system, the direct power supply includes a DC power supply & with multiple output DC output voltages, and a car replacement circuit. For ;;. A kind of DC output voltage with two voltage levels (such as mDc, 3 · 3 ', 5. DC power supply and conversion circuit with the same level of DC) 〇 M244645 V. Creation instructions (2) Output voltage (12VDC, (3 · 3VDC, 5 · OVDC) can be further voltage converted according to different application requirements. For example, the 12VDC2 DC output voltage can be subjected to another voltage adjustment in addition to the 12VDC DC output voltage without voltage conversion. And a capacitor 11 () to supply the DC working power required by the central processing unit in the computer system. 2 The DC output voltage of 3 · 3VDC is in addition to the 3 · 3vdc output voltage without voltage conversion. In addition, it can pass several DC-to-AC conversion circuits 13, 14, 15 and rectifier circuits! 30, 14 and 15 respectively send DC output with different voltage levels such as 1.25VDC, 1 · 8VDC, 2 · 5VDC, etc. The second figure shows a further circuit block diagram of the DC power supply and conversion circuit in the first figure, which includes a rectifier circuit 101, a power factor adjustment control circuit 102 (power Fac tor Correction

Controller (PFC), direct current to AC conversion circuit 103, and several AC to DC converters 104, 105, and 106. The rectifier circuit 101 converts AC power ACV to DC voltage through rectification. The power factor adjustment is performed by the power factor adjustment control circuit 102, and then the DC-to-AC conversion circuit 103 converts the DC voltage into an AC voltage in a switching operation. This AC voltage is sent to each of the AC-to-DC converters 104, 105, 106 to supply DC output voltages of different levels, such as DC output voltages of 12VDC, 3.3VDC, 50VDC, etc. And the DC output voltage in some circuits can be further regulated by the post voltage regulators 107 and 108 (post Regulator) to obtain a better DC output voltage.

M244645 V. Creation Instructions (3) The above-mentioned types of DC power supply systems have been widely used in computer equipment, control equipment, measuring instruments, electronic equipment, etc. And quite a lot of technology has been patented in the previous patented technology. For example, in the U.S. Invention Patent Nos. 6, 4 3, 4 and 4 3, a switching power supply with a plurality of DC voltages is disclosed. The switching power supply can be obtained from an AC power source. After transformers, series switching elements, filters and other components, more than two DC voltages are obtained at the output. Another example is U.S. Patent No. 6,477,063, which discloses a b-switched power supply having a plurality of DC output voltages. Most of these previous patents have adopted the architecture of DC distributed power supply as described above. Failure [New content] Based on DC distributed power supply, the efficiency of its circuit work is not good, and the circuit and the circuit in the DC conversion circuit have poor power conversion efficiency. In the current space, it is not easy to achieve the ideal goal of high power and efficiency. Furthermore, the target space is getting smaller and smaller, and the central processing makes it difficult to understand the traditional DC distributed power supply. In terms of cost, due to this traditional, and the circuit requires many stages of conversion power

The technical problems to be solved by this creation. However, when the aforementioned traditional circuit architecture is actually used, it has been found that the entire circuit architecture will require the entire circuit architecture because of the exchange of components. Good heat dissipation, etc. The power dissipation of the main board layout unit of the general computer device is getting larger and larger, and the circuit design of the circuit is getting more and more difficult. M244645 DC Distributed Power Supply Circuit V. Creation Instructions (4) circuit, so the whole is insufficient . Therefore, in reality, another demand is raised. For this reason, the source supply device replaces the traditional decentralized, distributed, straight-line, creative parent-source power supply circuit architecture. The cost of the circuit. In the operation of the creative power supply installation and supply circuit, the component cost of the circuit architecture is higher, resulting in a competitive industry It is necessary to address the aforementioned DC decentralized power supply, which is a replaceable power supply circuit frame. The main purpose of the decentralized AC power supply circuit is the circuit architecture. Another purpose is to provide a power supply circuit efficiency through the original body. Another purpose is to provide a complex reliability supply structure that does not have circuits in a circuit architecture, so that the decentralized circuits can be effectively lost. Circuit group AC components are distributed in degrees. Therefore, in this creation, it is based on a DC current power supply device that can reduce the total and increase the electrical installation. Its multi-level conversion can provide a circuit with a power supply. The structure and various defects can reduce the high reliability of the decentralized circuit. For example, the lack of traditional circuit components to the 0 circuit should be based on the actual AC architecture to overcome the decentralized power supply of the transmission device and reduce the entire distributed AC and DC. The overall circuit of the power supply The technical means to solve the problem of this creation> This creation is to solve the problems of the conventional technology. An AC power supply and conversion circuit is made up of a series of technical means and generates several exchanges with different levels. Round: J obtains I as the power source, and the output voltage can be passed through a central processing unit. After one of the AC transmission DC voltage, the voltage modulation unit is used for electricity 2 ~ The circuit will be converted to the love level adjustment * to supply M244645's DC application and the circuit with different electrical circuit components can include power flow through the circuit. The central processing unit requires a power rectifier to convert the power to the voltage level of the power circuit. The main purpose of the 7L in the early morning is 5. Creation instructions (5) The central processing unit is required to supply the AC power. The electric dust is respectively converted into a power supply and conversion circuit for supplying the current in the computer device. In another embodiment, the rectifier circuit is handed over to the power factor adjustment control. The rectifier circuit can be arranged in the embodiment. A plurality of rectifier circuits supply a plurality of AC output DC output voltages to operate a DC power source. After the AC factor adjustment control is switched to DC voltage, it is adjusted by a factor. In this creative voltage supply circuit and each board. This creation is based on the effectiveness of the previous technology. The technology used in the creation can make the DC to acres on the motherboard of the brain of this creation; ^ 疋 # 不定 疋 in the main power circuit or electricity reduction, you can # The electronic components used in the π # / direct converters have a large circuit efficiency; the power conversion loss is reduced, thereby increasing the number of conversion circuit components, and the reliability of the circuit can be improved. [Embodiment] As shown in the third figure of Kumeng H, it shows that this creative AC decentralized power supply is provided for the supply and conversion output r; the output voltage of the AC power source two electric power, which can be powered by an AC power source ACV Obtain working power and generate several AC output voltages with different levels, such as the AC

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The current output voltage can be 12VAC M.25VAC, 1.8VAC 3.3V, 5. OVAC, etc. The fourth diagram shows a further circuit block diagram of the AC power supply and conversion circuit 20 in the third diagram, which includes a rectifier circuit 201, a power factor adjustment control circuit 202, and a current flow to the AC conversion circuit 201. The rectifier circuit 201 converts the AC power source ACV to a DC voltage, and then adjusts the power factor with the power factor adjustment control circuit 202, and then / from the child DC to the parent current conversion circuit 2 03 converts the DC voltage to The switching method is used to convert to AC output voltages of different voltage levels such as 12VAC '125VAC, 18VA (J, 2.5VAC, 3.3VAC, 5.0VAC, etc.). The AC power supply and conversion circuit 20 Each AC output voltage can be further processed as a voltage. For example, the AC output voltage of the 2 va C can pass through the AC to DC conversion circuit 21, and then a voltage modulation unit 22 can be used to adjust the voltage level. The capacitor 22 provides the DC working power required by the central processing unit 23 in the computer system. Also, the AC-to-DC conversion circuit 21 and the voltage modulation unit 22 are It becomes the voltage supply circuit of the central processing unit in the computer. The AC power supply and conversion circuit 20 each AC wheel voltage can also pass through several rectifier circuits 2 4, 2, 5, 2, 6, 2 7 , 28, and turn off the 1.25VDC, 1.8VDC, 2.5VDC, 3.3vdc, 500VDC and other DC wheel output voltages to provide DC working power for each circuit in the computer system. The fifth diagram shows the better M244645 of this creative AC decentralized power supply system. V. The creative description (7) Example circuit diagram. The rectifier circuit 201 in the AC power supply and conversion circuit 2 can be a bridge full-wave rectifier circuit. The AC power source ACV can be rectified and converted into a DC voltage. The power factor adjustment control circuit 2 02 cooperates with one of the switching unit sw 1 and related circuit elements in the AC power supply and conversion circuit 20 to perform a power factor on the circuit. How the power factor adjustment control circuit 202 performs power factor adjustment control is a conventional technique.

The DC-to-AC conversion circuit 2003 includes two switching switches SW2, SW3, and an exchange signal generating circuit 204. The exchange signal generating circuit 204 can obtain an output voltage from a DC output voltage (for example, 12VDC). The feedback signal si sends a complementary exchange control signal S2, S / to control the switching states of the switch SW2 and SW3 respectively. In this way, the AC power supply and the conversion circuit 20 The side main coil L generates a parent variable magnetic field, and magnetically links to each of the secondary side coils, so that the alternating current, supply and conversion circuit 2 can obtain AC output voltages KVAC of various voltage levels generated by each secondary side coil. , 1. 25VAC, 1. 8VAC, 2 · 5VAC, 3 · 3VAC, 5 · 0VAC. And each AC generated by the AC power supply and conversion circuit 20

U voltage can be rectified separately through rectifier circuits to supply the DC working power required by the computer and charging circuit units. For example, in an output circuit with a DC output voltage of 1.25VDC, the rectifier is a conventional full-wave rectifier circuit composed of diodes 24i and 242. The direct current M can be further sent to the DC auxiliary editor through a coil 243, and the Between the DC output terminal and the ground potential, there is another electric M244645. V. Creation Instructions (8) Body 2 4 4 'The base of the transistor 2 4 4 is connected in series with a Zener diode 2 4 5 and a reverse string. Connected to the diode 246, and the emitter of the transistor 2 44 is connected to the feedback coil 2 4 7. By the voltage of the transistor 2 4 4, the Zener diode 2 4 5 and the voltage of the diode 246 Position detection and adjustment, so that the feedback coil 247 generates a magnetic field change to the coil 2 4 3, so that the DC output terminal can obtain a stable 1 · 25VDC DC wheel output voltage. A capacitor 248 can also be connected in parallel at the DC output terminal, which can be used for voltage stabilization. In general applications, the AC power supply and conversion circuit 20 can make a separate power supply module, and the AC to DC conversion circuit 2 丨, the voltage modulation unit 22, and each of the rectifier circuits 24, 25, 26, 27, 28 can be arranged on the motherboard of the computer device. Of course, the AC power can also be supplied and converted to the circuit 20 and the AC-to-DC conversion circuit 21, the voltage modulation unit 2 charge 2, and various rectifier circuits. Common configuration of 24, 25, 26, 27, 28 i = —This makes the power supply design of the computer device flexible and selective in the module. ^ t, the AC decentralized power supply device provided by this creation is similar to the decentralized power supply circuit, which can reduce the number of electronic components. It has ::: r loss reduction and electricity. The original operation has met the requirements of the patent! " 、 Effectiveness enhancement of obvious people ’Therefore, the above description is only a description of the preferred embodiment of this creation. Anyone skilled in M244645

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Brief description of the diagram [Simplified description of the diagram] The first diagram shows a block diagram of a conventional DC distributed power supply device; the second diagram of the ridge function side shows the approach of the DC power supply and conversion circuit in the first diagram—a block diagram of the circuit ; The second figure of Budian shows the block diagram of the AC decentralized power supply device of this creative; the circuit function of the fourth figure shows the block diagram of the AC power supply and conversion circuit in the third figure; Detailed circuit diagram of decentralized power supply. $ 汽 知 例 The main part of the representative symbol description 10 101 102 103 104, 105, 106 I 0 7, 1 0 8 II 110 12 DC power supply and conversion circuit rectifier circuit power factor adjustment control circuit DC to AC conversion circuit AC DC-to-DC converter voltage regulator voltage regulator unit capacitor central processing unit 1 3, 1 4 1 5 DC to AC conversion circuit 1 3 0, 1 4 0, 1 5 0 rectifier circuit

M244645

Brief description of the drawing Adjustment control circuit DC to AC conversion circuit exchange signal generation circuit AC to DC conversion circuit voltage modulation unit capacitor central processing unit rectifier circuit diode coil transistor Zener diode diode feedback coil capacitor switch unit switch switch Switch exchange control signal primary side primary coil

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Claims (1)

6. Scope of Patent Application 1. A direct-source supply device of multiple voltage levels required for AC decentralized power supply includes: an AC power supply and conversion power supply, and generating several power supplies with at least one central processing unit; A DC conversion circuit and an electric switching circuit convert the output voltage of the AC power supply stream into a DC voltage level adjustment for supplying the required DC working power supply; a plurality of rectifying circuits for supplying the supplied AC outputs Potential DC output voltage for power supply. The device is used to supply a computer device to discharge the wheel from the Thundercage Fortress. The AC decentralized circuit is obtained from a mountain and each m parent k power source to obtain the output voltage of the parent current wheel = Kushiro, including Yes-AC s ° transformer unit 'after one of the AC voltage supplied by the AC to DC conversion and conversion circuit' is used by the voltage modulation unit to power the central processing unit in the computer device, the AC power supply and conversion circuit is pressed They are respectively converted into DC power supplies with different voltages required in the computer device. The AC decentralized power supply device described in item 1 of the scope of the patent application, wherein the AC power supply and conversion circuit includes a rectifier circuit and DC to AC A conversion circuit, wherein the rectifier circuit converts the AC power into a DC voltage, and then the DC-to-AC conversion circuit converts the DC voltage into AC output voltages of different voltage levels through a switching operation. AC decentralized power supply equipment as described in the scope of patent application No. 2 M244645 6. Scope of patent application-The AC power supply and conversion circuit further includes a power factor adjustment control circuit. The rectifier circuit converts the AC power to DC voltage after rectification, and then uses the power factor to adjust the control circuit for power. Factor 4. The AC decentralized power supply device described in item 1 of the scope of patent application, wherein the voltage supply circuit of the central processing unit further includes n capacitors connected to the output terminal of the voltage modulation unit. 5. The AC decentralized power supply device according to item 1 of the scope of patent application, wherein the voltage supply circuit of the central processing unit includes at least two switching switches and an exchange signal generating circuit, and the exchange signal generating circuit A feedback signal of an output voltage is obtained from the output voltage of the AC distributed power supply device, and an exchange control signal is sent according to ^ to control the switching state of the switch. 6. Used to supply the voltage of a computer device. The AC decentralized power supply is an AC decentralized power supply device. The required DC output source supply devices of multiple voltage levels include: AC power supply and conversion circuit. Work the electric field source and generate several AC output voltages with different levels; the voltage of at least one central processing unit pulls the mountain peak-the circuit should be used to supply the central processing required by the computer. DC working power supply; a plurality of rectifier circuits to convert the AC power supply and conversion circuit DC: The voltage supply circuit of the 2nd Central 4th Central Processing Unit and each method can be arranged on the motherboard of the computer device. The positive machine circuit is the AC decentralized power supply device described in 7. ΐ Shenΐ = =: The voltage supply circuit of the central processing unit includes a to-k conversion circuit and a voltage modulation unit, AC power supply and conversion After the voltage bit of the circuit is changed to a DC voltage, the voltage modulation unit is used to adjust the electrical 2 bits to supply the DC working power required in the computer device. Yatianxianli: Application: The AC decentralized power supply device described in item 7 of the patent scope, wherein the voltage supply circuit of the central processing unit further includes an electric device 'connected to the voltage modulation unit. Output. The AC decentralized power supply device described in item 6 of the scope of patent application by Shikou, wherein the AC power supply and conversion circuit includes a rectifier circuit and-a DC-to-AC conversion circuit, where the rectification circuit converts ^ current = rectification into After the DC voltage, the DC-to-AC conversion circuit is used to convert the DC voltage to the AC wheel output voltage with different voltage levels in an exchange operation manner. M244645 6. Scope of patent application 10. The AC decentralized power supply device described in item 9 of the scope of patent application, wherein the AC power supply and conversion circuit further includes a power factor adjustment control circuit, and the rectifier circuit passes the AC power supply through After rectification and conversion to DC voltage, the power factor is adjusted by the power factor adjustment control circuit. 11. The AC decentralized power supply device according to item 6 of the scope of patent application, wherein the voltage supply circuit of the central processing unit includes at least two switching switches and an exchange signal generating circuit. The exchange signal generating circuit is composed of In the AC distributed power supply device, a DC output voltage obtains a feedback signal of an output voltage, and a complementary exchange control signal is sent according to the feedback signal to control the switching states of the switch. Page 19