CN201142641Y - power supply unit - Google Patents

Abstract

The utility model discloses a power supply device, which includes an input module, a power conversion module and an output module. The input module is used to receive an AC power source. The power conversion module is coupled to the input module to convert the AC power source into a DC power source. The power conversion module and the output module are coupled to the power conversion module to output the DC power source. The power supply device described in the utility model can save users from the inconvenience of carrying a transformer, greatly improving the convenience of using a notebook computer.

Description

power supply unit

technical field

The utility model relates to a power supply device, in particular to a power supply device combined with power conversion, which can provide the power required by a notebook computer.

Background technique

With the rapid development of information technology, in order to meet the needs of computer users to work conveniently anywhere, a notebook computer has been developed, and its light weight, easy to carry advantages and convenience make the notebook computer an extremely popular product.

However, the notebook computer also has its disadvantages. For example, the power consumption of the notebook computer is very large, which is one of the problems that are well known to the public and are eager to be improved. Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a general notebook computer coupled to a mains power supply using an inverter. As shown in FIG. 1 , the current notebook computers 10 all have batteries arranged inside them, and then use a power converter 20 having a plug 202 , that is, a transmission line connector 204 to connect to the battery of the notebook computer 10 , and the power converter 20 The plug 202 of the plug 202 is coupled to the mains outlet to receive the mains and further convert the mains into a power supply that meets the needs of the notebook computer 10, and then use the transmission line connector 204 to provide the power to the battery for charging or directly supplying the notebook computer 10. use, so that the notebook computer 10 can operate normally.

If the user of the notebook computer 10 wants to go out, the battery needs to be fully charged by the above-mentioned charging method to ensure that the notebook computer 10 has enough power for its use; otherwise, the power converter 20 must be carried along with it. In order to ensure that the operation of the notebook computer 10 will not cause the dilemma of being unable to continue to use because the power of the battery is exhausted, but the power converter 20 of the general notebook computer 10 has a certain weight, which is a kind of use for the user. and bring great inconvenience to it.

Therefore, how to provide a more convenient way for users of notebook computers, so that users can use notebook computers normally without carrying an adapter, has become an important issue in the use and development of notebook computers. .

Utility model content

Therefore, one of the objectives of the present invention is to provide a power supply device combined with power conversion, which can provide the power required by the notebook computer, so as to solve the problems faced by the known technology.

The utility model discloses a power supply device combined with power conversion, which includes an input module, a power conversion module and an output module. The input module is used for receiving an AC power. The power conversion module is coupled to the input module for converting the AC power into a DC power. The output module is coupled to the power conversion module for outputting the DC power. Wherein the power supply device is arranged on a wall.

In the power supply device described in the present invention, the input module is a power plug, which is used to couple to the household power supply device to receive household AC power.

According to the power supply device of the present invention, the output module can be coupled to a portable electronic device through a transmission line to provide the DC power to the portable electronic device.

In the power supply device described in the present invention, the output module is a socket.

According to the power supply device of the present invention, the portable electronic device is a notebook computer, a mobile phone, a personal digital assistant (PDA) or a portable media player (PMP).

In the power supply device described in the present invention, the power conversion module includes: an AC impedance circuit, used to block the AC power supply; a rectifier circuit, coupled to the AC impedance circuit, which has two AC inputs terminal and two DC output terminals, the two AC input terminals are coupled to the AC impedance circuit for converting the AC power supply into the DC power supply; and a DC impedance circuit is coupled to the two rectifier circuits The DC output terminal is used to output the DC power supply.

According to the power supply device of the present invention, the AC impedance circuit is composed of a capacitor, one end of the capacitor is coupled to an AC input end of the rectifier circuit, and the other end of the capacitor is coupled to the input module.

In the power supply device described in the present invention, the AC impedance circuit is composed of a variable resistor and a capacitor, the variable resistor is connected in parallel to the two AC input ends of the rectifier circuit, and one end of the capacitor is coupled to One of the two AC input terminals of the rectifying circuit is coupled to the variable resistor.

According to the power supply device of the present invention, the power supply device further includes an adjustment device coupled to the power conversion module for adjusting the resistance of the variable resistor to further adjust the size of the DC power supply.

In the power supply device described in the utility model, the rectifier circuit is a bridge rectifier circuit.

In the power supply device described in the utility model, the bridge rectifier circuit is composed of four diodes.

In the power supply device described in the present invention, the DC impedance circuit is composed of an impedance circuit and a capacitor, the capacitor is connected in parallel to the two DC output ends of the rectification circuit, and one end of the impedance circuit is coupled to the rectification circuit One of the two DC output terminals is coupled to the output module at the other end.

The power supply device described in the utility model can save the user from the inconvenience of carrying the transformer, and greatly improves the convenience of using the notebook computer.

Description of drawings

FIG. 1 is a schematic diagram of a general notebook computer coupled to a mains power supply using a transformer.

FIG. 2 is a schematic diagram of the power supply device proposed by the present invention.

FIG. 3 is a schematic diagram of a power conversion module of the power supply device proposed by the present invention.

FIG. 4 is a circuit diagram of a power conversion module of the power supply device proposed by the present invention.

FIG. 5 is a circuit diagram of another embodiment of the power conversion module of the power supply device proposed by the present invention.

Detailed ways

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of the power supply device proposed by the present invention. As shown in FIG. 2 , the present invention provides a power supply device 30 combined with power conversion, which includes an input module 32 , a power conversion module 34 and an output module 36 . The input module 32 is used for receiving an AC power. The power conversion module 34 is coupled to the input module 32 for converting the AC power into a DC power. The output module 36 is coupled to the power conversion module 34 to output the DC power, and the DC power is provided for a portable electronic product, such as a notebook computer, a mobile phone, a personal digital assistant (PDA), a portable Media Player (PMP) and more. Wherein, the power supply device 30 is disposed on a wall.

In one embodiment, the input module 32 is a power plug, which is coupled to a household power outlet for receiving household AC power. The output module 36 is a socket, which can be coupled to a portable electronic device through a transmission line to provide the DC power to the portable electronic device. In this way, the mains AC power can be converted into the power mode required by the portable electronic device and provided for use. For example, the power supply device 30 of the present invention can convert the 110V (volt) AC power of the general commercial power into 11V (volt) or 5V (volt) DC power that meets the specifications of portable electronic products for its use. Through the power supply device 30 of the present utility model, users of portable electronic products that need power conversion do not have to carry a heavy power converter with them as in the past, but can use the power supply built in the wall of the utility model The device 30 obtains the required power supply, which can greatly improve the convenience of the user.

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of a power conversion module of the power supply device proposed by the present invention. As shown in FIG. 3 , the power conversion module 34 includes an AC impedance circuit 342 , a rectification circuit 344 and a DC impedance circuit 346 . The AC impedance circuit 342 is used to block the AC power. The rectifier circuit 344 is coupled to the AC impedance circuit 346 and has two AC input terminals N ₁ , N ₂ and two DC output terminals N ₃ , N ₄ , the two AC input terminals N ₁ , N ₂ are coupled to the AC The impedance circuit 342 and the rectification circuit 344 are used to convert the AC power into a DC power. The DC impedance circuit 346 is coupled to the two DC output ends N ₃ and N ₄ of the rectification circuit 344 to output stable DC power, so that when the AC power suddenly steps up or down, the current conversion module 34 remains A stable DC power supply can be supplied to the output module 36 .

Please refer to FIG. 2 and FIG. 4 . FIG. 4 is a circuit diagram of the power conversion module of the power supply device proposed by the present invention. As shown in FIG. 2 and FIG. 4 , in this embodiment, the AC impedance circuit 342 is an impedance circuit formed by a capacitor _C1 . One end of the capacitor C ₁ is coupled to an AC input end N ₂ of the rectification circuit 344 , and the other end of the capacitor C ₁ is coupled to the input module 32 .

Please refer to FIG. 2 and FIG. 5 . FIG. 5 is a circuit diagram of another embodiment of the power conversion module of the power supply device proposed by the present invention. As shown in FIG. 2 and FIG. 5 , in this embodiment, the AC impedance circuit 342 is an impedance circuit composed of a variable resistor R ₁ and a capacitor C ₁ . The variable resistor R ₁ is connected in parallel to the two AC input terminals N ₁ and N ₂ of the rectification circuit 344, and one end of the capacitor C ₁ is coupled to an AC input terminal N ₂ of the rectification circuit 344, and the other end of the capacitor C ₁ One end is coupled to the variable resistor R ₁ . In addition, the power supply device 30 further includes an adjustment device (not shown in the figure), coupled to the power conversion module 34, the adjustment device (not shown in the figure) is used to adjust the resistance value of the variable resistor _R1 , by changing the variable resistor R ₁ , the magnitude of the DC power generated by the rectifier circuit 344 can be further adjusted.

Wherein, the rectification circuit 344 is a bridge rectification circuit. The bridge rectifier circuit is composed of four diodes, wherein a first diode D ₁ is connected in series with a second diode D ₂ , and a third diode D ₃ is connected in series with a fourth diode D ₄ . In addition, the cathode of the first diode _D1 and the cathode of the third diode _D3 are coupled to the AC impedance circuit 342, the anode of the first diode _D1 and the anode of the third diode _D3 and The cathode of the second diode D ₂ and the cathode of the fourth diode D ₄ are coupled to the DC impedance circuit 346 . With this type of circuit configuration, the rectifier circuit 344 can effectively convert the AC power into DC power.

The DC impedance circuit 346 is composed of an impedance circuit 3460 and a capacitor C ₂ , the capacitor C ₂ is connected in parallel to the two DC output terminals N ₃ and N ₄ of the rectification circuit 344 , and one end of the impedance circuit 3460 is coupled to the rectification circuit 344 One DC output terminal N ₄ of the impedance circuit 3460 is coupled to the output module 36 . Wherein, the impedance circuit 3460 is a circuit composed of resistors, capacitors or inductors. For example, it can be a resistor. In addition, the DC impedance circuit 346 may also only have the impedance circuit 3460 without a capacitor.

The power conversion module 34 converts the AC power transmitted from the input module 32 into a DC power, and outputs it from the DC impedance circuit 346 to the output module 36 . Thereby, when the AC power transmitted from the input module 32 suddenly boosts or drops in voltage, the power conversion module 34 can still stably supply DC power to the portable electronic device coupled to the output module 36, thus protecting it. unharmed.

In the power supply device of the present utility model, the transformer required by the notebook computer in the past is installed in the socket on the wall, so that when the user needs to use the notebook computer, he only needs to use a connecting wire to plug into the power supply device of the present utility model The output module of the utility model can obtain the power supply required by the notebook computer. If the user is on a business trip and the power supply device of the utility model is installed in the hotel room, the user can save the inconvenience caused by carrying the transformer. , greatly improving the convenience of using the notebook computer.

The above description is only a preferred embodiment of the present utility model, but it is not intended to limit the scope of the present utility model, any person familiar with this technology, without departing from the spirit and scope of the utility model, can Further improvements and changes are made, so the protection scope of the present utility model should be determined by the scope defined in the claims of the present application.

A brief description of the symbols in the drawings is as follows:

10: Notebook computer

20: Transformer

30: Power supply unit

32: Input module

34: Power conversion device

36: Output module

202: plug

204: Transmission line connector

342: AC Impedance Circuit

344: Rectifier circuit

346: DC Impedance Circuit

3460: Impedance Circuits

D ₁ , D ₂ , D ₃ , D ₄ : Diodes

N ₁ , N ₂ : AC input terminals

N ₃ , N ₄ : DC output terminals

R ₁ : variable resistor.

Claims (13)

1. A power supply device combined with power conversion, characterized in that it comprises: an input module for receiving an AC power; a power conversion module, coupled to the input module, for converting the AC power into a DC power; and An output module, coupled to the power conversion module, is used to output the DC power. 2. The power supply device according to claim 1, wherein the power supply device is disposed on a wall. 3. The power supply device according to claim 2, wherein the input module is a power plug for coupling to a household power supply device to receive household AC power. 4. The power supply device according to claim 3, wherein the output module can be coupled to a portable electronic device through a transmission line for providing the DC power to the portable electronic device. 5. The power supply device according to claim 4, wherein the output module is a socket. 6. The power supply device according to claim 5, wherein the portable electronic device is a notebook computer, a mobile phone, a personal digital assistant or a portable media player. 7. The power supply device according to claim 1, wherein the power conversion module comprises: an AC impedance circuit for blocking the AC power supply; A rectifier circuit, coupled to the AC impedance circuit, has two AC input terminals and two DC output terminals, and the two AC input terminals are coupled to the AC impedance circuit to convert the AC power into the DC power supply; and A DC impedance circuit is coupled to the two DC output ends of the rectification circuit for outputting the DC power. 8. The power supply device according to claim 7, wherein the AC impedance circuit is composed of a capacitor, one end of the capacitor is coupled to an AC input end of the rectifier circuit, and the other end is coupled to the input module. 9. The power supply device according to claim 7, wherein the AC impedance circuit is composed of a variable resistor and a capacitor, the variable resistor is connected in parallel to the two AC input terminals of the rectifier circuit, and One end of the capacitor is coupled to one of the two AC input ends of the rectifier circuit, and the other end is coupled to the variable resistor. 10. The power supply device according to claim 9, characterized in that the power supply device further comprises an adjustment device coupled to the power conversion module for adjusting the resistance of the variable resistor to further adjust the The size of the DC power supply. 11. The power supply device according to claim 7, wherein the rectification circuit is a bridge rectification circuit. 12. The power supply device according to claim 11, wherein the bridge rectifier circuit is composed of four diodes. 13. The power supply device according to claim 7, wherein the DC impedance circuit is composed of an impedance circuit and a capacitor, the capacitor is connected in parallel to the two DC output ends of the rectification circuit, and the impedance circuit One end is coupled to one of the two DC output ends of the rectifying circuit, and the other end is coupled to the output module.

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