TWM266641U - AC/DC adaptor module - Google Patents

Description

M266641 V. Creation instructions (1) Creation area: This creation is about an adapter module, especially about an AC / DC adapter module that can avoid signal interference. Creative background: AC / DC adapters are indispensable basic electronic components today, and have been widely used in many power components that require current conversion, such as desktop computers, monitors, printers, and notebook computers. , Fax machines, photocopiers and other equipment. As the AC / DC converter uses high-frequency switching technology, in conjunction with the pulse width modulator (PWM) and output filter circuit, it can convert the city power into the DC voltage required by the IC circuit, such as + 5 V, + 12V, -5V , -12V, + 3 · M and other voltages, but the side effect after this conversion is that there is a little AC component in the DC component. If this AC component (hereinafter referred to as noise) is too large, the applied circuit will malfunction The crash occurs, so the impact of output noise is not small. Therefore, in order to filter out this noise, the converted DC power is mostly rectified by a DC / DC rectifier and then supplied to other peripheral equipment for power supply. However, due to the power requirements and consumption of various peripheral devices, the DC voltage will change, which will cause interference problems. The first figure shows a conventional AC / DC adapter module 1 used for powering a personal computer, which includes a filtering and rectifying circuit 11, a pulse width modulator 12, a transformer 13, and a ground wire ( Frame Ground Wire) 14, wherein the two output ends of the transformer 13 are respectively electrically connected to a DC / DC rectifier 2 1 in the personal computer module 2, and the ground wire 1 4

Page 4 M266641 V. Creative Instructions (2) is connected to the negative output terminal of the transformer 13. In addition, a signal output device 3 such as a television or a display module is further disclosed in the first figure, which is connected to the personal computer module 2 through a video or display interface 22 and is shared with the AC / DC adapter module 1 One power socket 4. However, in use, since the grounding wire 4 in the AC / DC adapter module 1 can communicate with the grounding wire 32 in the signal output device 3 through the common power socket 41, interference problems are easily caused. As shown in the figure, when the external AC / DC adapter module 1 provides power to the personal computer module 2 via the V + and V- terminals, its current will flow from the DC / DC rectifier in the personal computer module 2. 2 1 flows back to point a and then back to point b. Since the DC / DC rectifier 21 in the computer module 2 is used to supply power to other internal equipment, the current flowing at points a and b will consume the supply of DC / DC rectifier 21 according to other internal equipment. The amount of power and current changes. If its current changes, the voltage between points a and b will change accordingly. On the other hand, since points b to c and points e to f are connected through a ground wire, and points c and e can be connected through a common power socket 4, the potential at point b can be transferred to f point. Since point a and point g are connected through a grounding piece 23, the potential at point a can be transferred to point g. As a result, when the voltage at points a to b changes, it will shift to points g to f, causing the signal reference value of signal output device 3 to change, thereby disturbing the picture of signal output device 3 (such as the twill Phenomenon) or sound. Due to the lack of know-how, the applicant has carefully studied and researched, and the spirit of perseverance has finally developed the best of this case.

M266641 Creative Instructions (3) " " " " ----- < AC / DC adapter module to avoid signal interference. Creation purpose: The main purpose of this case is to provide a connector module. Turnaround

The adapter module conceived according to the present case is used to convert AC power from a socket into DC power, so as to provide the DC power as a power source for a device damage group. The adapter module includes a transformer with a positive output terminal and a 1-pole output terminal for electrically connecting to a positive input terminal and a negative input terminal of the equipment module, respectively. The negative input tank is more electrically connected to a grounding piece in the equipment module; and a ground wire, one end of which is connected to the grounding piece in the equipment module, and the other end is connected to one of the sockets to ground end. According to the above concept, the adapter module further includes a filtering and rectifying circuit and a pulse width adjuster.

According to the above concept, the filtering and rectifying circuit and the pulse width adjuster are connected to the ground wire through a capacitor. X According to the above concept, the adapter module further includes a first-polarity capacitor connected in parallel between the filtering and rectifying circuit and the pulse width adjuster.

According to the above concept, the adapter module further includes a second-polarity capacitor having a positive terminal electrically connected to a positive output terminal of the transformer, and a negative terminal electrically connected to a negative output terminal of the transformer. According to the above concept, the ground piece is connected to a ground terminal of an output interface in the equipment module.

Page 6 M266641 V. Creative Instructions (4) ~ According to the above concept, the output interface is connected to a signal output device through a signal line. According to the above idea, wherein the signal output device is provided with power through the socket. According to the above-mentioned concept, the signal output device further has a ground wire 'which is connected to the ground terminal of the socket.

Another object of this case is to provide an adapter module for converting y AC power from ~ socket to DC power to provide the DC power as a power source for a device module. The adapter module includes a transformer having a positive output terminal and a negative output terminal for electrically connecting to a positive input terminal and a negative input terminal of the equipment module, respectively. The negative input terminal is further electrically connected to a ground piece in the equipment module; a ground wire, one end of which is connected to the ground piece in the equipment module, and the other is connected to a ground of one of the sockets. And a buffer circuit connected in parallel between the negative output terminal of the transformer and the ground wire. According to the above conception, the adapter module in Huangzhong further includes a filtering and integration circuit and a pulse width adjuster.

The concept is described, in which the chirped wave and the rectification loop and the pulse width withdraw are connected to the ground wire through a capacitor. According to the above concept, the adapter module further includes a first-polarity electric valley, connected in parallel between the filtering and rectifying circuit and the pulse width adjuster. According to the above concept, wherein the adapter module further includes a second polarity: valley: it has a positive terminal electrically connected to the positive output terminal of the transformer, and a negative terminal electrically connected to the negative output terminal of the transformer.

M266641 V. Creation instructions (5) According to the above concept, wherein the buffer circuit and— according to the above concept, wherein the capacitor and the resistor are electrically connected to the negative output terminal of the transformer and the connection according to the above concept, wherein the electrical appliance Furthermore, the ground end is connected to the ground piece in the equipment module. According to the above concept, the output interface is connected to a signal wheel-out device. According to the above concept, wherein the signal output provides power. According to the above concept, the signal output device line 'is connected to the ground terminal of the socket. Another purpose of this case is to provide a power conversion module and a socket to convert AC power into DC power. The basin set includes a transformer module, straight and positive. ^ 山 ^ A positive output terminal and a rectifier module. A positive input terminal is electrically connected to the pole output terminal; a negative input terminal is electrically connected to the transformer terminal; and a grounding piece is connected to the negative input terminal; and one end thereof is connected to the rectifier module. The ground piece is connected to a ground terminal of the socket. According to the above concept, the transformer module further includes a loop and a pulse width adjuster. According to the above concept, the filtering and rectifying regulator is connected to the ground wire through a capacitor. According to the above concept, the transformer group further includes a capacitor and a resistor. In parallel, between the ground wires. The output interface, one connected through a signal line, has a grounding guide group through the socket, which is used to source the power supply; ^ a negative output terminal; the positive module of the transformer module The negative output and a ground wire; and the other end contains a filtering and rectifying circuit and a pulse capacitance of the pulse width, and

V. Creation description (6) Connected to the filtering and rectifying fun circuit and according to the above-mentioned concept, where the change is based on the above-mentioned concept, where the change right is a transformer. It has a positive terminal that is electrically connected to the transformer Transformer 3-polar capacitor, a negative terminal that is electrically connected to the transformer cylinder, and a positive output terminal, and according to the above concept, the grounding piece Negative = end. One ground terminal. The system is connected to a wheel output interface. According to the above-mentioned concept, the output interface is connected to a signal wheel output device. It is through a signal line. According to the above concept, the signal wheel is provided to provide power. I means that the socket has a grounding conductor. According to the above concept, the signal wheel is wired out and is connected to the ground terminal of the socket. A plug-in flow :: ... will be derived from a group consisting of a transformer module with a positive output terminal and a mold-rectifier module with a positive input terminal & shell output cake, pole output terminal;- The negative input terminal is electrically connected to the negative terminal of the transformer house module; and a grounding tab is connected to the negative wheel input end; a grounding wire, one end of H is connected to the grounding tab of the rectifier module; and The other end is connected to the-ground terminal of the socket; and-the buffer circuit is connected in parallel between the negative output terminal of the transformer module and the ground wire. According to the above concept, the transformer module further includes a filtering and rectifying circuit and a pulse width adjuster. M266641 V. Creation instructions (Ό According to the above idea 'of which 4 filtering and rectifying circuits and the pulse width adjuster are connected to the ground wire through a capacitor. According to the above idea, the remote transformer group further includes a polar capacitor, and Connected between the filtering and rectifying circuit and the pulse width adjuster. According to the above concept, the transformer module further includes a transformer. According to the above concept, the transformer module further includes a polar capacitor, which has a The positive terminal is electrically connected to the positive wheel output end of the transformer module, and a negative terminal is electrically connected to the negative output terminal of the transformer module. According to the above concept, the grounding piece is connected to an output. A ground terminal of the interface. According to the above concept, the output interface is connected to a signal output device through a signal line. According to the above concept, the signal output device is provided with power through the socket. According to the above concept, wherein The signal output device further has a ground wire, which is connected to the ground terminal of the socket. According to the above concept, the buffer current The road is provided with a capacitor and a resistor. According to the above concept, the capacitor and the resistor are electrically connected in parallel with the transformer output module between the negative output terminal and the grounding wire. The detailed description can be found in the second and third figures. The second figure is the first preferred embodiment of the case. As shown in the figure, the AC / DC conversion module 1 created in this case can be derived from a AC power from socket 4

M266641

V. Creation Instructions (8)

It is converted into DC power, and the DC power is provided as a power source of a personal computer module 2. The AC / DC conversion module 1 includes a transformer 13 and a ground wire 14 '. The transformer 13 further has a positive output terminal (not disclosed) and a negative output terminal b, which are respectively electrically connected to one of the positive input terminals (not shown) of the DC / DC rectifier 21 in the personal computer module 2. (Disclosed) and a negative input terminal a ′; and the negative input terminal a ′ of the DC / DC rectifier 21 is further electrically connected to a ground piece 23 in the personal computer module 2. One end of the grounding wire in the AC / DC adapter module 1 is connected to the grounding piece 23 in the personal computer module 2 at point d, and the other end is connected to The ground terminal 41 of the socket 4 is at point c. Of course, the AC / DC converter module 1 further includes a filtering and rectifying circuit 1 丨 and a pulse width adjuster 12, which is connected to the ground wire 14 through a capacitor γCAP and connected to V to the AC / The DC adapter module 1 further includes a first-polarity capacitor 6 in parallel to the delta helium wave and the rectification circuit 11 and the adjustment of the pulse width. A second-polarity capacitor ... has a positive and negative electrical connection. The output terminal and a negative terminal are electrically connected to the negative output terminal b of the transformer 13. In addition, the ground piece 23 in the personal computer module 2 is connected to a ground terminal g of a video or display interface 22 in the personal computer module 2; and the video or display interface 22 is transmitted through A signal line 33 is connected to a signal output device 3 ′ and provides power through the socket 4. The signal output device 3 also has a ground wire 32, which is connected to the ground terminal 4 of the socket 4 at 6 o'clock. Through the connection of the above circuit module, when the AC / DC conversion module! When supplying power to the personal computer module 2, its current path is

M266641 Creative Instructions (9) The path is the same as traditional practice. However, according to the creation of this case, the potential at point g will be the same as point f, point e, point c, point a, and so on. In other words, there will be no DC voltage or fluctuating voltage between point g and point f, thereby achieving the function of interference avoidance (including the interference of image and sound). In addition, the ground plate 23 in the personal computer module 2 is directly connected to points f and g, thereby further improving the problems of EMI and ESD. Yiming refers to the second figure ', which is the second preferred embodiment of the present case. As shown in FIG. 7, the AC / DC conversion module 1 can convert one AC power from a socket 4 into DC power, and provide the DC power as a personal computer, the power source of Group 2. The AC / DC converter module includes a transformer 13, a ground wire 14, and a buffer circuit 15. The transformer 13 has a positive output terminal (not disclosed) and a negative output terminal b, which are respectively electrically connected to a positive input terminal (not disclosed) of the DC / DC rectifier 21 in the personal computer module 2 and A negative input terminal a; and the negative input terminal 3 'of the DC / DC rectifier 21 is further electrically connected to a grounding piece 23 in the personal computer module 2. One end of the ground wire 14 in the AC / DC conversion module i is connected to the ground piece 23 in the personal computer module 2 at point d, and the other end is connected to the socket 4 As for the snubber circuit 15, it can be a resistor R (R ′) also: "1 2 <1 VF), where the capacitor c and the resistor R are connected in parallel and connected to the negative electrode of the transformer 13 Between the output terminal b and the ground wire 14. Of course, the AC / DC conversion module 1 further includes a filtering and rectifying circuit 11 and a pulse width adjuster 12 which is connected to the ground wire 14 through an electric CAP, and is connected to the AC / DC converter. Connector i also contains —

Page 12 M266641

The first polarity electric current adjuster 1 2 is connected to a signal line 33 of the ground piece 23 display interface 22 of the transformer 13 and a power supply 33. And the lead is connected to the plug connection, and when connected, is connected in parallel to the filtering and rectifying circuit n, the pulse width and a second polarity capacitor 17, which has a positive output terminal of a positive terminal capacitor 13 and a negative terminal The extreme terminal is electrically connected to the negative output terminal b ′. In addition, the cable in the personal computer module 2 is connected to a video or display ground terminal g in the personal computer module 2; and the video or display interface 2 2 is connected to the first output device 3, The socket &amp; provided tritium output device 3 also has a ground wire 32, and the ground terminal 41 of the base 4 is at point e. When power is supplied to the personal computer module 2 through the current / DC conversion module 1 of the circuit module, the current path is from v +, DC / DC rectifier 21, v—3, to point b 'of V- The current path is the same as the traditional method. However, according to the creation of this case, the potential of point g in the third figure will be in phase with points f, e, c, a, and so on.

with. In other words, there will be no DC voltage or fluctuating voltage between point g and point f, which can achieve the function of eliminating interference (including the interference of image and sound). At the same time, the ground plate 23 in the personal computer module 2 is directly connected to points g and f, thereby improving the problems of EMI and ESD. Also in this real

In the embodiment, the addition of the buffer circuit 15 can further provide a countermeasure for effectively solving the EMI problem. In summary, this case provides an AC / DC adapter module that can avoid signal interference. By extending the grounding wire in an AC / DC adapter module to the personal computer module end (adding exclusive grounding) Wire), it can easily achieve the effect of eliminating signal interference. Even though this creation has been described in detail in the above embodiments, it can be done by anyone skilled in the art.

Page 13 M266641 V. Creative Instructions (11) All kinds of modifications, but none can be separated from those who want to protect the scope of patent application. 11 M266641 Simple illustration of the diagram Simple illustration of the diagram: The first picture shows a conventional AC / DC conversion module applied to a personal computer; the second picture shows the AC / DC conversion module of the first embodiment of this creation The third group and the third figure disclose the AC / DC conversion module of the second embodiment of the present invention. Symbol Description:

1 AC / DC adapter 11 Filter and rectifier circuit 12 Pulse width adjuster (PWM) 13 Transformer 1 4 Ground wire 15 Buffer circuit 1 6 First polarity capacitor 17 Second polarity capacitor 2 Personal computer module 21 DC / DC Rectifier 2 2 Video or display interface 23 Ground piece 3 Signal output device 31 Input signal amplifier 3 2 Ground lead 33 Signal line 4 Power socket Y CAP Capacitor 41 Ground terminal

Page 15

Claims (1)

M266641 6. Scope of patent application 1. An adapter module 'for converting AC power from a socket to direct current' and providing the DC power as a power source for an equipment module, the adapter module includes: -A transformer having a-positive output terminal and-a negative wheel output terminal for electrically connecting to a positive wheel input terminal and a negative input terminal of the equipment module, respectively, wherein the negative input terminal of the equipment module is more electrically connected To one of the grounding pieces in the equipment module; and one end of the grounding wire, which is connected to the grounding piece in the equipment module, and the other end is connected to one of the grounding ends of the socket. 2. The adaptor module according to item 丨 of the patent application scope, wherein the adaptor module further includes a filtering and rectifying circuit and a pulse width adjuster. 36. The adapter module according to item 2 of the scope of patent application, wherein the filter and the entire loop and the pulse width adjuster are connected to the ground wire through a capacitor. An adapter module, wherein the adapter module A further includes a first polarity capacitor connected in parallel between the filtering and rectifying circuit and the pulse width adjuster. ^ The adapter module of item 1 of the scope of patent application, wherein the adapter module f is a second polar capacitor having a positive terminal electrically connected to the positive output terminal of the second transformer and a negative terminal. Extremely connected to the negative wheel output of the transformer. ^ ^ The adapter module of claim 4 in the patent scope, wherein the grounding piece is a ground terminal of an output interface in the u device module. • ^ The adapter module of the patent scope item 6, wherein the output interface Page 16 M266641 6. The scope of the patent application is connected through a signal line—the signal output device where the signal is output and the signal is output 8. If the adapter module of the scope of patent application item 7 is used, the device is through the socket Provide power. 9. If the adapter module device of the scope of patent application No. 8 has a-grounding wire, it is connected to the ^ connection ^ end of the socket 1 °. Two kinds of first turn Λ1 &quot; module is used to Originated from-socket-AC power is converted into direct-grip power and the DC power is provided as a device module. The adapter module includes ... electricity, voltage regulator, which has a positive output terminal and a negative output terminal. For splitting connection to a positive input terminal and a negative input terminal of the equipment module, wherein the negative input terminal of the equipment module is further electrically connected to the equipment module ^ a ground piece; '' a ground wire 'One end is connected to the grounding piece in the appliance, and the other end is connected to a grounding end of the socket; and a buffer circuit, which is electrically connected between the negative output end of the transformer and the ground wire . 1 1 · The adapter module according to the scope of the patent application, wherein the adapter module further includes a filtering and rectifying circuit and a pulse width adjuster. 1 2 · The adapter module according to item 11 of the scope of patent application, wherein the filtering and rectifying circuit and the pulse width adjuster are connected to the ground wire through a capacitor. 1 3 · As described in the patent application for the adapter module, the adapter module further includes a first-polarity capacitor connected in parallel between the filtering and rectifying circuit and the pulse width adjuster. Page 17 M266641 VI. Application scope of patent 14. For example, the adapter module of the scope of patent application No. 10, wherein the adapter module further includes a second-polarity capacitor 'which has a positive pole electrically connected to The positive output terminal and a negative terminal of the transformer are electrically connected to the negative output terminal of the transformer. 15. The adapter module according to the scope of the patent application, wherein the buffer circuit has a capacitor and a resistor. 1 6. The adapter module according to item 5 of the patent application, wherein the capacitor and the resistor are electrically connected in parallel between the negative pole output terminal of the transformer and the ground wire. 17. The adapter module of the scope of application for patent No. 10, wherein the electric appliance has an output interface, and a ground terminal thereof is connected to the ground piece in the equipment module. 18 'The adapter module according to item 17 of the scope of patent application, wherein the output interface is connected to a signal output device through a signal line. 19. The adapter module according to item 18 of the patent scope, wherein the signal output signal is provided by the socket. 2．If the adapter module of the 18th scope of the patent application, the signal input and ground are provided with a ground wire, which is connected to the ground of the socket A module for converting AC power from a socket to DC power: DC power, the power supply module includes: a replacement, and, having a positive output terminal and a negative output terminal; a group, which has a The positive input is electrically connected to the positive output of the transformer module, and a negative input is electrically connected to the negative output of the transformer module. M266641 6. The scope of patent application and a grounding tab are connected to the negative input terminal; and a grounding wire having one end is connected to the grounding tab of the rectifier module, and the other end is connected to the One of the ground terminals of the socket. 2 &gt; 2 The power conversion module according to item 21 of the patent application scope, wherein the transformer module further includes a filtering and rectifying circuit and a pulse width adjuster. 23. The power conversion module according to item 22 of the patent application scope, wherein the filtering and rectifying circuit and the pulse width adjuster are connected to the ground wire through a capacitor. 2 / · For example, the power conversion module of the 22nd patent application range, wherein the transformer module further includes a first-polarity capacitor connected in parallel between the filtering and rectifying circuit and the pulse width adjuster. The transformer 25. The power transfer module according to item 21 of the patent application module includes a transformer. 26. If the power supply module according to item 2 丨 of the scope of patent application, the transformer module further includes a second; 1¾ sexual lightning, f girl ^ ^ ^ ^, first pole 丨 electric valley /, A positive terminal is electrically connected to the positive output terminal of ^ and 汲, and a negative terminal is electrically connected to the negative output terminal of the transformer module. 27. If the power supply of item 21 of the patent application is connected to one of the ground terminals of an output interface. Application module, where the ground is the output, the signal is the signal, and the signal is 2 ^ · Such as the power adapter module of the 27th scope of the patent application. The interface is connected to a signal output device through a signal line. The power-return output device of the scope of patent application No. 28 is to provide power through the socket. ， Draw ’3 〇 · If you apply for the power adapter module of the 29th patent scope, The M266641 output device on page 19 also has a ground wire, which is connected to the ground terminal 0 31 · of the socket. A power conversion module is used to convert an AC power source from a socket into a direct current. The power supply module includes: a transformer module having a positive output terminal and a negative output terminal; a rectifier module having a positive input terminal electrically connected to the positive output terminal of the transformer module and a negative electrode The input terminal is electrically connected to the negative output terminal of the transformer module, and a ground plate is connected to the negative input terminal; a ground wire having one end is connected to the ground plate of the rectifier module, and another One end is connected to a ground terminal of the socket; and a buffer circuit is electrically connected between the negative output terminal of the transformer module and the ground wire. 3 + 2. The power conversion module according to item 31 of the scope of patent application, wherein the transformer module further includes 3 —filter, ripple rectification circuit and —pulse width adjustment piano. 33. For example, the power conversion module X in the scope of application for patent 32 / wherein the chirped wave and rectification circuit and the pulse width adjuster are connected to the ground wire through a capacitor. 34. The power conversion module according to item 32 of the patent application scope, wherein the voltage-transformer unit includes a first-polarity capacitor 'connected in parallel between the filtering and rectifying circuit and the pulse width adjuster. Source 'adapter module, in which the transformer 3 5 · The electric module according to item 31 of the patent application scope further includes a transformer. M266641 The positive output terminal of the transformer module and the negative output terminal of the module. A negative terminal is electrically connected to the transformer. 3 pieces 7: Please connect to the special terminal ^ /-— ·, 1 ,, and 呓 cup $ The piece is connected to one of the ground terminals of an output interface. The output of which is the signal of which the signal is 38. The power adapter module interface of item 37 in the scope of patent application is connected to a signal output device through a signal line. The power adapter module of the profit range item 38 provides power for the outlet device. 40. For item 39 of the scope of patent application, the wheel-out device has a grounding wire, which is more complex. / 、 · It is the ground connected to the socket, among which the buffer 41. The power transfer module circuit of item 31 in the scope of patent application has a capacitor and a resistor. 42. If the scope of the patent application is 41 and the resistor is connected in parallel with the output terminal and the ground wire. Item of the power adapter module, wherein the capacitor is electrically connected to the negative wheel of the transformer module