AU2002242115A1 - Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converter - Google Patents
Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converterInfo
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- AU2002242115A1 AU2002242115A1 AU2002242115A AU2002242115A AU2002242115A1 AU 2002242115 A1 AU2002242115 A1 AU 2002242115A1 AU 2002242115 A AU2002242115 A AU 2002242115A AU 2002242115 A AU2002242115 A AU 2002242115A AU 2002242115 A1 AU2002242115 A1 AU 2002242115A1
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Description
DUAL INPUT AC and DC POWER SUPPLY HAVING A PROGRAMMABLE DC OUTPUT UTILIZING A SECONDARY BUCK
CONVERTER
CROSS REFERENCE TO RELATED APPLICATIONS
The present application is related to and claims priority from commonly assigned U.S. Patent application Serial No. 10/005,961 filed December 3, 2001, the teachings of which are incorporated herein by reference.
TECHNICAL FIELD
The present invention generally relates to the field of power converters, and more particularly to a dual input AC and DC to programmable DC output power converter.
BACKGROUND OF THE INVENTION As the use of mobile electronic products, such as PC notebooks, PDAs , cellular telephones and the like, continues to increase, the need for low cost, compact power supplies to power and recharge these products also continues to increase. Most manufacturers of mobile products typically include plug-in power adapters along with these mobile products to help facilitate the power supply needs of their customers.
Today's power adapters are typically AC-to-DC, or DC-to-DC power converters which are configured to either step-up or step-down the DC voltage input delivered to the mobile device. With AC-to-DC adapters, for example, users can power most mobile devices by simply plugging the adapter into a simple AC wall outlet commonly found in most homes or offices. Similarly, when only DC
input power is available, such as in an automobile or airplane, users can still power their mobile devices by simply using a standard, off-the-shelf DC-to-DC adapter. Normally, both adapters are designed and tailored to provide a regulated DC output voltage, which typically range from between 5VDC to 30NDC depending on the kind of mobile device being powered.
Although these power adapters conveniently provide direct power and recharging capabilities, users are often required to carry separate adapters to provide power to each individual mobile device. This often means that users have to carry multiple adapters: one for an AC input power source, and another for a DC input power source, moreover, users typically carry multiple adapters to power multiple devices. Thus, by carrying more than one device at a time, users of mobile product users are forced to carry more than one bulk power supply adapter.
Accordingly, there exists a need for a power converter that resolves the system management problems associated with carrying all of the different power supply components necessary to power a wide variety of mobile or portable devices. Moreover, such a power converter would advantageously encompass serving the power supply needs of several different mobile devices, as it would supply a filtered and regulated DC output voltage in response to either an AC and DC input voltage. Moreover, by having a power convert or having multiple output terminals, users have the ability of providing power to several mobile devices of varying power requirements, simultaneously, regardless of whether the input voltage is AC or DC.
SUMMARY OF THE INVENTION
The present invention achieves technical advantages as a power converter capable of supplying dual DC output voltages derived from either an AC input voltage or a DC input voltage. The power converter can be externally programmable to cover a wide range of voltage and current combinations, suitable for a wide variety of mobile product offerings. Moreover, the power converter also resolves the management problems associated with having several different interface components necessary to power a wide variety of mobile products. By having dual output voltage connections, mobile product users can simultaneously power multiple mobile devices of varying power specifications.
In one preferred embodiment, the invention is a power converter having a first circuit adapted to receive an AC input voltage and provide a first programmable DC output voltage. The power converter includes a second circuit adapted to provide a second programmable DC output voltage in response to a DC input voltage. The power converter also includes a third circuit that, in response to receiving the first and second DC output voltages, generates a selectable DC output voltage at a first output. Moreover, the third circuit generally comprises a feedback circuit and is adapted to interface with a removable program module. This programming module feature allows users of the power converter to selectively establish the voltage level of the DC output voltage. The power converter also includes a fourth circuit that is coupled to first output. The fourth circuit provides a second DC output voltage as a second output which is independent of, and substantially lower than the selectable DC output voltage.
In another embodiment, the invention is a method of generating at least two independently selectable DC output voltages in response to an AC input voltage or a DC input voltage. This method is achieved by the act of converting
the received AC or DC input voltage to a first programmable DC output voltage at a first output. The converting act is then followed by a receiving act wherein the first DC output voltage is received by a converting circuit. The converting circuit initiates a generating act generating a second DC output voltage that is independent of and substantially lower than the programmable DC output voltage.
BRIEF DESCRIPTION OF THE DRAWINGS
Advantages of the invention and the specific embodiments will be understood by those of ordinary skill in the art by reference to the following detailed description of preferred embodiments taken in conjunction with the drawings, in which:
Figure 1A shows a block diagram of a dual input AC and DC power converter having dual DC voltage outputs in accordance with the present invention;
Figure IB shows an exploded view of the converter with the detachable buck circuit;
Figure 2 shows a schematic diagram of the power converter circuit as illustrated in Figure 1 in accordance with the present invention; and
Figure 3 shows a detailed schematic diagram of a DC-to-DC buck converter circuit in accordance with the present invention; and
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The numerous innovative teachings of the present applications will be described with particular reference to the presently preferred exemplary embodiments. However, it should be understood that this class of embodiments provides only a few examples of the many advantageous uses and innovative teachings herein. In general, statements made in the specification of the present application do not necessarily delimit any of the various claimed inventions. Moreover, some statements may apply to some inventive features, but not to others. There is shown in Figure 1 A a block diagram of a dual input AC/DC power converter 10 having dual programmable DC voltage outputs in accordance with the present invention. Preferably, the dual input AC/DC power converter 10 comprises a power converter circuit 20 having an AC-to-DC converter 22, a DC- to-DC booster converter 24, a feedback circuit 26, a filter circuit 25 and a DC-to- DC buck converter 28. The power converter circuit 20 is seen housed in housing 13 and advantageously provides a first programmable DC output voltage at DC output terminal 16 and a second programmable DC output voltage at terminal 18. Both of these DC output voltages may be generated as a function of both AC and DC input voltages.
In operation, the AC-to-DC converter 22 receives an AC signal via input terminal 12 and provides a regulated DC output voltage at node Nl. Similarly, the DC-to-DC booster converter 24 may receive a DC input voltage at its input via input terminal 14 and may also provide a regulated DC output voltage at node Nl.
Input terminals 12 and 14 are integrated into a single common connector 17 such that different power cords adapted to receive input power from different sources are received by the common connector 17. For instance, DC power from
an airplane or car power source are wired to couple to input 12 and AC source is wired to couple to input 14. In a selected embodiment, the AC-to-DC converter 22 is adapted to generate a DC output voltage of between 15NDC and 24NDC in response to an AC input voltage at terminal 12 ranging between 90NAC and 265NAC. Likewise, the DC-to-DC booster converter 24 is adapted to provide a DC output voltage which is substantially similar to that of converter 22, but which is generated in response to a DC input voltage supplied at input terminal 14. Preferably, DC-to-DC booster converter 24 is adapted to receive a voltage in the range of between 11NDC and 16NDC. Advantageously, AC-to-DC conversion, via AC-to-DC converter 22, allows users of the power converter 10 to power high-power mobile devices, such as a laptop computer wherever AC input power is available, such as in the home or office, for example. Conversely, the DC-to- DC booster converter 24 of the power converter 10 is capable of powering similar high-power devices by stepping up most low amplitude DC input signals, such as those found in automobile and/or airplane environments.
As shown, filter circuit 25 has its input tied to the respective outputs of the converter 22 and 24. h a preferred embodiment, the filter circuit is adapted to provide a filtered DC output voltage at second node Ν2, which, thereafter, feeds output terminal 16, at an output power of 75 watts, for example.
The single feedback circuit 26 is shown coupled to the output of filter circuit 25 at node N2. In a preferred embodiment, the feedback 26 circuit, through a single feedback loop, regulates the voltage level of the filtered DC output voltages generated by both converters 22 and 24. Additionally, the feedback circuit 26 is adapted to receive a removable programming module that allows mobile device users to provide a selectable DC output voltage at output 16 via node N2. The programming module comprises a key 15 comprising a resistor, wherein different associated values of the resistor establish different associated
DC output voltages at output 16. By allowing users to selectively change the voltage level of the filtered DC output voltage, the power converter 10 may be adapted to power a variety of different mobile electronic devices, having different associated power requirements. Moreover, the power converter's 10 programming module may also be adapted to provide the additional function of output current limiting.
The DC-to-DC buck converter 28 has its input coupled at node N2, providing a second DC output voltage that is then fed to output terminal 18, having an output power of 10 watts, for example. Preferably, buck converter 28 discreetly steps down the filtered DC voltage and produces a second DC output voltage at a separate output terminal 18. In a selected embodiment, the buck converter 28 steps down the filtered DC output voltage to a range of about 3NDC and 15NDC. Advantageously, this second DC output voltage generated by converter 28 is independent of, and substantially lower than the DC output voltage at terminal 16. This allows users of the present invention to power not only a high-power peripheral, such as a laptop computer, but also, a second, low- power peripheral, such as a cell phone, PDA, and the like. Moreover, the present invention allows for these peripherals to be powered simultaneously by a single converter, regardless if the input voltage is AC or DC. The buck converter 28 is physically detachable from the main housing 13 as shown in Figure IB, allowing different buck circuits providing different output voltages to be selectively attached to housing 13 and tap the DC output voltage from output terminal 18.
Referring now to Figure 2 there is shown a schematic diagram of the power converter circuit 20 of the dual input AC/DC power converter 10 as depicted in Figure 1 in accordance with an exemplary embodiment of the present invention. As described herein in greater detail, the power converter circuit 20, in
a preferred embodiment, comprises three separate converters: AC-to-DC power converter 22, DC/DC boost converter 24, and DC-to-DC buck converter 28.
AC-TO-DC CONVERTER
The AC-to-DC power converter 22 includes a true offline switcher which is configured in a fly-back topology. Full-wave rectification of an AC input signal, received at input terminal 12, occurs using a full- wave bridge rectifier BD1 and a filter capacitor CI, which creates a DC voltage bus from which the switcher operates. Inductor LI offers additional EMI filtering of the AC signal after the signal has been rectified through the full-wave bridge. The AC-to-DC converter 22 also includes a main controller ICl configured as a current mode pulse- width modulator (PWM). Main controller ICl is also configured to have a single-ended output with totem pole driver transistors coupled thereto. The AC- to-DC power converter 22 has a main power switch Ql which drives the main transformer Tl . In a preferred embodiment, the transformer Tl, Schottky diode D 11 , and filter capacitors C24 and C25 combine to provide the DC output voltage at node Nl.
As noted earlier, filter circuit 25 allows for additional filtering of the DC output voltage derived from node Nl . The filter circuit 25 itself comprises inductor L3, capacitor C26 and transformer NF Advantageously, the filter circuit 25 produces a filtered DC output voltage at output 16 having less than lOOmv peak-to-peak noise and ripple.
The feedback circuit 26, through a single feedback loop, is capable of regulating the filtered DC output voltages provided by the converters 22 and 24. The feedback circuit 26 is also adapted to be coupled to a removable programming module having a key 15, comprising resistor R53. As such, the
present invention allows users to selectively program the DC output voltage later received at output terminal 16. The feedback circuit 26 includes a photocoupler circuit comprising a pair of photocouplers PHI and PH3 connected in series (i.e., stacked), each being coupled to the outputs of operational amplifiers IC4-A and IC4-B. Advantageously, these photocouplers are arranged along the feedback loop of the feedback circuit 26. Additionally, the feedback circuit 26 efficiently regulates the filtered DC output voltages generated by both converters 22 and 24 through a single feedback loop. In stacking the photo-couplers, the present invention also allows the power converter 10 to maintain proper input/output isolation between respective terminals 12 and 14 and output terminal 16.
Preferably, the output current limiting function of converter 22 is accomplished via integrated circuit IC4A, resistors R33, R37, R38, and R39 and programming resistor R54.
Over voltage protection of AC-to-DC converter 22 is achieved using photocoupler PH2 and zener diode ZD2. In a preferred embodiment, zener diode ZD2 is set at 25N such that when in avalanche mode it causes the transistor side of photocoupler PH2 to bias transistor Ql into the on state. When it is the on state, transistor Q3 pulls low pin 1 of integrated controller ICl and pulls the operating duty cycle of the integrated controller towards 0%. This takes the DC output voltage to 0 volts. Also, when transistor Ql is on, transistor Q2 is also forced on which then forces these two transistors become latched. If transistors Ql and Q2 are latched, input power must be recycled in order for the power converter 10 to be turned on again.
DC-TO-DC CONVERTER
The DC-to-DC converter 24 is configured in a boost topology and utilizes the same kind of integrated controller, IC2, as used in converter 22. In the DC-to- DC converter 24, transistor Q8 acts as the main power switch and diode D6 as the main rectifier. Preferably, inductor L2 is adapted to function as a power boost inductor, which is comprised of a toroid core-type inductor. It should be understood that the cathode leads of diodes Dll and D8 are connected, forming an ORed configuration, requiring only one output filter. Advantageously, this eliminates the board space needed for a second set of filters capacitors.
Like the AC-to-DC converter 22, the DC-to-DC converter 24 is also designed to operate at a frequency of around 80KHZ. For the AC-to-DC converter 22, the operating frequency is set by resistor R13 and capacitor C7. Likewise, the operating frequency of the DC-to-DC converter 24 are set by resistor R28 and capacitor C28.
The DC-to-DC converter 24 includes an over- voltage protection circuit comprising zener diode ZD2, resistor R23, R24, R48, transistor Q415, and silicon-controlled rectifier SCI. Zener diode ZD2 sets the over- voltage protection point (OVP) which is preferably set at 25NDC. Generally, there is no current flowing through resistor R48. If, however, when zener diode ZD2 begins to conduct current, the drop across R48 is significant enough to bias transistor Q6 on, pulling its collector terminal high, and thereby turning silicon controlled rectifier SCI on. When silicon control rectifier SCI is on, it pulls pin 1 of the integrated controller IC2 low. Thus, if pin 1 of integrated controller IC2 is low, the output drivers thereof are forced to operate at a duty cycle of 0%, thereby producing a DC output voltage of 0 volts at pin 6. Advantageously, the silicon controlled rectifier SCI functions as a power latch circuit that requires that input
power be recycled in order to turn on the power converter 10 if a voltage above 25NDC is detected at node Νl.
The temperature of the housing 13 of the power converter 10 is monitored using a thermistor ΝTC3. If, for example, there is a corresponding increase in the temperature of the housing 13, it will result in a decrease in the resistive value of thermistor NTC3, thereby causing transistor Q9 to turn on and pull low pin lof integrated circuit IC2 of converter 24. Moreover, this causes the photo-coupler PH2 to be biased enough to activate a latch circuit comprising transistors Ql and Q2 that will shutdown the power converter 22. In addition, the power converter's 10 thermal protection feature is adapted to operate regardless of whether an AC or DC input voltage is being received at their respective input terminals.
Figure 3 shows a detailed schematic diagram of the DC-to-DC buck converter 28 in accordance with the present invention. The buck converter 28 has an integrated circuit controller ICl, similar to converters 22 and 24, which is adapted to generate an on-time duty cycle to power transistor switch Ql . The operating frequency of controller ICl is set by capacitor C6, which is coupled between pin 4 of ICl and ground, and resistor Rl, which is coupled between pins 4 and 8. In a selected embodiment, the diode Dl functions comprises a Schottky diode and functions as "catch" diode. Inductor LI is a output power inductor and couples the gate of power transistor Ql to Nout- Fuse FI is shown coupled between N;n and the drain terminal of power transistor Ql, and advantageously provides current protection to buck-converter 28.
Furthermore, the input Njn of the buck converter 28 is coupled to the output of filter circuit 25 at node Ν2, wherein Njn receives the filtered DC output voltage therefrom. In a preferred embodiment, the buck converter 28 provides a second DC output voltage at Nout, coupled to output terminal 18. Advantageously,
the buck convert 28 discreetly steps down the filtered DC output voltage and provides a second DC output voltage at output terminal 18 which is independent of, and substantially lower than the DC output voltage at output terminal 16. Likewise, the DC output voltage of the buck converter 28 enables users low- power peripherals, such as, a cell phones, a PDAs, and/or similar mobile devices, a selected embodiment, the buck convert 28 may also be adapted to provide a DC output voltage at output terminal 18 ranging between 3NDC and 15NDC, selectively determined as a function of the chosen value of resistor Rl used in the particular buck converter 28, with a total power delivery of 10 watts, for example. As previously mentioned, the buck converter 28 may be housed in a separate, detachable program module that enables users to selectivelyprogram the DC output voltage at terminal 18 as a function of different associated buck converter modules.
Though the invention has been described with respect to specific preferred embodiments, many variations and modifications will become apparent to those skilled in the art upon reading the present application. It is therefore the intention that the appended claims be interpreted as broadly as possible in view of the prior art to include all such variations and modifications.
Claims (31)
1. A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; a third circuit receiving said first and second predetermined DC voltages and, in response thereto, providing a selectable DC output voltage at a first output, wherein said selectable DC output voltage is established as a function a removable program module; and a fourth circuit coupled to said first output and providing a second DC output voltage at a second output, whereby said second DC voltage output is independent of, and substantially lower than said selectable DC output voltage.
2. The power converter of Claim 1 further comprising a fifth circuit comprising a filter circuit adapted to filter said first and second predetermined DC output voltages and provide a respective first and second filtered DC output voltage at a common node.
3. The power converter of Claim 1 wherein said first circuit comprises a AC-to-DC flyback converter, wherein said AC-to-DC flyback converter is adapted to provide a DC output voltage of between 15NDC and 24NDC.
4. The power converter of Claim 1 wherein said second circuit comprises a DC-to-DC boost converter, wherein said DC-to-DC boost converter is adapted to provide a DC output voltage of between 15NDC and 24VDC.
5. The power converter of Claim 1 wherein said third circuit includes a feedback circuit coupled to said first circuit and said second circuit, said feedback circuit regulating the first and second predetermined DC voltages generated by said first and second circuits.
6. The power converter of Claim 5 wherein said feedback circuit comprises a single loop.
7. The power converter of Claim 1 wherein said fourth circuit comprises a DC-to-DC buck converter providing said second DC output voltage, said DC-to-DC buck converter providing said second DC output voltage of between 3NDC and 15NDC.
8. The power converter of Claim 1 wherein said first and second predetermined DC output voltages are substantially the same and are provided to a common node.
9. The power converter of Claim 1 wherein said first and second predetermined DC output voltages of said respective first and second circuit are established via said removable program module, wherein said removable program module comprises a key adapted to be removably coupled to said power converter.
10. The power converter of Claim 1 wherein said removable program module comprises a key having a resistor, wherein said first and second DC output voltage are a function of the value of said resistor.
11. The power converter of Claim 10 wherein said key establishes an output voltage function.
12. The power converter of Claim 10 wherein said key establishes an output current limiting function.
13. The power converter of Claim 1 wherein said first circuit is adapted to receive an AC input voltage having a range of 90NAC to 265NAC.
14. The power converter of Claim 1 wherein said second circuit is adapted to receive a DC input voltage having a range of 11NDC to 16VDC.
15. The power converter of Claim 1 wherein said first and second predetermined DC output voltages are programmable as a function of the program module.
16. The power converter of Claim 1 wherein said fourth circuit comprises a second removable program module, wherein said second DC output voltage at said second output is a function of said different associated second removable program modules.
17. The power converter of Claim 1 wherein said fifth circuit further includes a protection circuit, said protection circuit provides an over-voltage protection function.
18. The power converter of Claim 1 wherein the first circuit and the second circuit receive their respective AC input voltage and DC input voltages at a common single connector.
19. A method of generating at least two independently selectable DC output voltages in response to either an AC input voltage or a DC input voltage, comprising the steps of: converting the received AC or DC input voltage to a first selectable DC output voltage; receiving said first selectable DC output voltage and generating a second DC output voltage which is independent of and substantially lower than said first selectable DC output voltage.
20. The method of Claim 19 further comprising the step of selectively establishing the voltage magnitude of said first selectable DC output voltage using a removable program module.
21. The method of Claim 19 wherein said first selectable DC output voltage is provided by an AC-to-DC flyback converter in response to an AC input voltage.
22. The method of Claim 19 wherein said first selectable DC output voltage is provided by a DC/DC boost converter in response to a DC input voltage.
23. The method of Claim 19 further comprising the step of filtering said first selectable DC output voltage via a filter circuit, said filter circuit providing a filtered DC output voltage of between 15NDC and 25NDC.
24. The method of Claim 23 wherein said filter circuit output is coupled to a DC-to-DC buck converter, wherein said DC-to-DC buck converter is adapted to provide the second separate and independent DC output voltage of between 3NDC and 15NDC.
25. The method of Claim 19 wherein said removable program module comprises a key having a set of resistors, wherein said first selectable DC output voltage is a function of the value of one of said resistors.
26. The method of Claim 25 wherein said key establishes an output voltage function.
27. The method of Claim 25 wherein said key establishes an output current limiting function.
28. The method of Claim 19 wherein said AC input voltage can have a range of 90NAC to 265NAC.
29. The method of Claim 19 wherein said DC input voltage can have a range of 11NDC to 16NDC.
30. A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; and an third circuit receiving said first and second predetermined DC voltages and, in response thereto, providing a selectable DC output voltage at a first output, wherein said selectable DC output voltage is established as a function a removable program module.
31. The power converter of Claim 30 wherein said first and second predetermined DC output voltages are substantially the same and are provided to a common node.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33578501P | 2001-10-31 | 2001-10-31 | |
| US60/335,785 | 2001-10-31 | ||
| US10/005,961 | 2001-12-03 | ||
| US10/005,961 US6643158B2 (en) | 2001-10-31 | 2001-12-03 | Dual input AC/DC to programmable DC output converter |
| PCT/US2002/003542 WO2003038981A1 (en) | 2001-10-31 | 2002-02-08 | Dual input ac and dc power supply having a programmable dc output utilizing a secondary buck converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2002242115A1 true AU2002242115A1 (en) | 2003-07-10 |
| AU2002242115B2 AU2002242115B2 (en) | 2006-09-14 |
Family
ID=26674975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2002242115A Ceased AU2002242115B2 (en) | 2001-10-31 | 2002-02-08 | Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converter |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US6643158B2 (en) |
| EP (1) | EP1440502B1 (en) |
| JP (1) | JP2005507629A (en) |
| KR (1) | KR100636611B1 (en) |
| CN (1) | CN1541439A (en) |
| AT (1) | ATE306140T1 (en) |
| AU (1) | AU2002242115B2 (en) |
| CA (1) | CA2454044C (en) |
| DE (2) | DE02707726T1 (en) |
| ES (1) | ES2217995T3 (en) |
| IL (2) | IL160167A0 (en) |
| NO (1) | NO326380B1 (en) |
| RU (2) | RU2274939C2 (en) |
| TR (1) | TR200400659T3 (en) |
| WO (2) | WO2003038981A1 (en) |
Families Citing this family (74)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6441589B1 (en) * | 2001-04-02 | 2002-08-27 | Bellsouth Intellectual Property Corporation | Portable battery recharge station |
| US6643158B2 (en) * | 2001-10-31 | 2003-11-04 | Mobility Electronics, Inc. | Dual input AC/DC to programmable DC output converter |
| US6920056B2 (en) * | 2001-10-31 | 2005-07-19 | Mobility Electronics, Inc. | Dual input AC and DC power supply having a programmable DC output utilizing single-loop optical feedback |
| US6791853B2 (en) * | 2001-12-03 | 2004-09-14 | Mobility Electronics, Inc. | Dual input AC/DC power converter having a programmable peripheral power hub module |
| US6903950B2 (en) * | 2001-12-03 | 2005-06-07 | Mobility Electronics, Inc. | Programmable power converter |
| US7701739B2 (en) * | 2001-12-03 | 2010-04-20 | Igo, Inc. | Portable device having integral voltage connector |
| WO2003055047A2 (en) * | 2001-12-05 | 2003-07-03 | Montante Charles J | Dual input voltage adapter system and method |
| US6893153B2 (en) * | 2002-06-28 | 2005-05-17 | Hewlett-Packard Development Company, L.P. | Temperature-indicating power adapter and electronic device that operates therewith |
| US7148659B2 (en) * | 2003-06-20 | 2006-12-12 | Comarco Wireless Technologies, Inc. | Programmable AC/DC power supply |
| US7808122B2 (en) | 2003-11-07 | 2010-10-05 | Menas Gregory W | Automatic sensing power systems and methods |
| US7166937B2 (en) * | 2003-12-15 | 2007-01-23 | Radio Shack Corporation | Power supply, and associated method, exhibiting selectable electrical characteristics |
| US9153960B2 (en) | 2004-01-15 | 2015-10-06 | Comarco Wireless Technologies, Inc. | Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices |
| US7561446B1 (en) | 2005-09-15 | 2009-07-14 | Vlt, Inc. | Double-clamped ZVS buck-boost power converter |
| US7548441B2 (en) | 2004-02-24 | 2009-06-16 | Vlt, Inc. | Universal AC adapter |
| US20080303483A1 (en) * | 2004-06-10 | 2008-12-11 | Sendyne Corporation | External Versatile Battery with Power Saving Mode |
| US7646107B2 (en) * | 2004-09-30 | 2010-01-12 | Targus Group Internatnional, Inc. | Programmable power adaptor |
| US20060098369A1 (en) * | 2004-11-08 | 2006-05-11 | Wambsganss Peter M | Microcontroller controlled power supply |
| US20060098358A1 (en) * | 2004-11-08 | 2006-05-11 | Wambsganss Peter M | Power supply configured to detect a power source |
| US7408132B2 (en) * | 2004-11-08 | 2008-08-05 | Rrc Power Solutions Gmbh | Temperature sensor for power supply |
| US7108528B2 (en) * | 2004-11-08 | 2006-09-19 | Rrc Power Solutions Gmbh | Power supply connector |
| US7151678B2 (en) * | 2004-12-15 | 2006-12-19 | Motorola, Inc. | Power system with redundant power supply apparatus |
| US7466042B2 (en) * | 2005-04-06 | 2008-12-16 | Flexsil, Inc. | Universal DC power |
| CN100413192C (en) * | 2005-04-08 | 2008-08-20 | 中国科学院声学研究所 | EP DC-DC boost pressure biasing circuit for sensor |
| US7298120B2 (en) * | 2005-05-11 | 2007-11-20 | Radio Shack Corporation | Apparatus, and associated method, for converting electrical power into form for powering a load device |
| KR100682991B1 (en) * | 2005-05-12 | 2007-02-20 | 엘지전자 주식회사 | Method of supplying power source and apparatus for performing the same |
| TWI327805B (en) | 2005-05-12 | 2010-07-21 | Lg Display Co Ltd | Apparatus for supplying power source |
| US7101226B1 (en) * | 2005-06-08 | 2006-09-05 | Wave Intellectual Property, Inc. | Compact contour electrical converter package |
| US20070029879A1 (en) * | 2005-08-04 | 2007-02-08 | Eldredge James G | Distribution of universal DC power in buildings |
| US20070055791A1 (en) * | 2005-08-23 | 2007-03-08 | Steve Wood | Integrated power converter and I/O expansion |
| US7566979B1 (en) | 2005-10-25 | 2009-07-28 | High Tide Associates, Inc. | Electrical power source |
| TWM292207U (en) * | 2005-12-07 | 2006-06-11 | Sanhan Technology Corp | Power supply device |
| US7273384B1 (en) * | 2006-04-11 | 2007-09-25 | Modern Sense Limited | Universal battery charger and/or power adaptor |
| KR100771780B1 (en) * | 2006-04-24 | 2007-10-30 | 삼성전기주식회사 | Led driving apparatus having fuction of over-voltage protection and duty control |
| JP4882482B2 (en) * | 2006-04-24 | 2012-02-22 | パナソニック株式会社 | Power supply |
| US7642671B2 (en) | 2006-04-28 | 2010-01-05 | Acco Brands Usa Llc | Power supply system providing two output voltages |
| US7686216B2 (en) | 2006-06-13 | 2010-03-30 | Hand Held Products, Inc. | Method and apparatus for uniquely associating a bar code reading terminal to a cash register in a retail store network |
| US20080059816A1 (en) * | 2006-08-30 | 2008-03-06 | Frank Patrick Paniagua | Power supply capable of receiving digital communications from electronic devices |
| US8296587B2 (en) | 2006-08-30 | 2012-10-23 | Green Plug, Inc. | Powering an electrical device through a legacy adapter capable of digital communication |
| WO2008070852A2 (en) * | 2006-12-07 | 2008-06-12 | Northern Power Systems, Inc. | Modular power converters usable alone or in a multiphase power converter |
| US7745954B1 (en) | 2007-01-15 | 2010-06-29 | Polsinelli Shughart PC | Power sampling systems and methods |
| KR100833764B1 (en) * | 2007-01-22 | 2008-05-29 | 삼성에스디아이 주식회사 | Organic light emitting display having dc-dc converter |
| US7945370B2 (en) * | 2008-02-07 | 2011-05-17 | Caterpillar Inc. | Configuring an engine control module |
| WO2011085048A1 (en) * | 2010-01-05 | 2011-07-14 | Belkin International, Inc. | Improved power supply and method related thereto |
| AU2009240669B2 (en) * | 2008-04-22 | 2013-08-01 | Belkin International, Inc. | Improved power supply |
| US9024581B2 (en) * | 2008-05-21 | 2015-05-05 | James W. McGinley | Charger plug with improved package |
| US7826240B2 (en) * | 2008-06-26 | 2010-11-02 | Fsp Technology Inc. | Adapter connection structure |
| JP2010015340A (en) * | 2008-07-03 | 2010-01-21 | Fujitsu Component Ltd | Portable console device |
| US8441216B2 (en) | 2008-09-03 | 2013-05-14 | ALVA Systems, Inc. | Power supply system for a building |
| CN101740972A (en) * | 2008-11-21 | 2010-06-16 | 神讯电脑(昆山)有限公司 | Power commutator |
| KR20110008553A (en) * | 2009-07-20 | 2011-01-27 | 삼성전자주식회사 | Semiconductor memory device and method of forming the same |
| WO2011097538A1 (en) * | 2010-02-04 | 2011-08-11 | Belkin International, Inc. | Improved ground detection circuit and method of manufacturing the same |
| US20120126621A1 (en) | 2010-11-10 | 2012-05-24 | Michael Scott Brownlee | Lighting system |
| WO2012177810A2 (en) | 2011-06-20 | 2012-12-27 | Belkin International, Inc. | Improved electric power supply and related methods |
| GB201116923D0 (en) | 2011-09-30 | 2011-11-16 | Danmedical Ltd | Improvements relating to medical apparatus and accessories |
| JP6407722B2 (en) * | 2012-01-06 | 2018-10-17 | フィリップス ライティング ホールディング ビー ヴィ | Power converter with separate buck and boost conversion circuit |
| RU2617831C2 (en) * | 2012-01-19 | 2017-04-28 | Конинклейке Филипс Н.В. | Power source device |
| US8550827B1 (en) | 2012-07-25 | 2013-10-08 | Targus Group International, Inc. | Multi-sleeve power tips |
| US8821199B2 (en) | 2012-07-25 | 2014-09-02 | Targus Group International, Inc. | Multi-prong power tip adaptor |
| WO2014027987A1 (en) | 2012-08-15 | 2014-02-20 | Whitaker Bradford K | Light emitting apparatus and method of manufacturing and using the same |
| CN103683905A (en) * | 2012-09-07 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Voltage converter |
| US9335780B1 (en) * | 2013-01-07 | 2016-05-10 | Lockheed Martin Corporation | Input range expander for power supplies |
| US11083067B2 (en) * | 2013-03-15 | 2021-08-03 | Hatch Transformers, Inc. | Electrical power supply with removable plug-in cartridge |
| US20140265931A1 (en) * | 2013-03-15 | 2014-09-18 | Hatch Transformers, Inc. | Electrical Power Supply With Removable Plug-In Cartridge |
| EP3179575B1 (en) * | 2014-08-05 | 2021-05-19 | Sony Corporation | Ac/dc plug and equipment including such a plug |
| DE102014219787A1 (en) * | 2014-09-30 | 2016-03-31 | Robert Bosch Gmbh | Switching power supply with at least one power section and at least one auxiliary power supply |
| CN104595925A (en) * | 2015-02-04 | 2015-05-06 | 中国海洋石油总公司 | Air gun source ignition device |
| US10186982B2 (en) | 2015-04-02 | 2019-01-22 | Telcodium Inc. | Dual-input single-output power supply |
| KR102471497B1 (en) * | 2016-04-01 | 2022-11-28 | 삼성전자주식회사 | Power supplying system and power module |
| US10122179B2 (en) * | 2016-05-19 | 2018-11-06 | Qualcomm Incorporated | Power supplies with feedback |
| CN106451746A (en) * | 2016-10-18 | 2017-02-22 | 广西电网有限责任公司电力科学研究院 | Outdoor tester power supply method |
| CN107579650A (en) * | 2017-08-21 | 2018-01-12 | 上海空间电源研究所 | Multi-source fusion power conversion topologies circuit and its transformation topology method |
| US11638341B2 (en) | 2019-06-21 | 2023-04-25 | Signify Holding B.V. | Isolated converter and led driver using the isolated converter |
| WO2021050397A1 (en) | 2019-09-10 | 2021-03-18 | Hatch Transformers, Inc. | Methods and apparatuses for dimming a constant-voltage output led driver |
| CN114759773B (en) * | 2022-04-22 | 2023-11-03 | 苏州浪潮智能科技有限公司 | Multi-input power supply, control method and storage medium of server |
Family Cites Families (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1741265A (en) | 1927-03-16 | 1929-12-31 | Wappler Frederick Charles | Transformer |
| US2427111A (en) | 1942-04-14 | 1947-09-09 | Remington Rand Inc | Converter |
| US2792559A (en) | 1953-03-02 | 1957-05-14 | Garland A Maberry | Plug connector reversing switch |
| US3201617A (en) | 1962-04-20 | 1965-08-17 | Westinghouse Electric Corp | Connector including a rectifier for voltage reduction |
| GB1031469A (en) | 1962-10-10 | 1966-06-02 | Lucas Industries Ltd | Power control circuits |
| US3256466A (en) | 1962-10-12 | 1966-06-14 | Adtrol Electronics Inc | Socket insert for varying the intensity of a light bulb |
| US3281747A (en) | 1963-02-25 | 1966-10-25 | Dollar Electric Company | Multi-tap plug |
| US3452215A (en) | 1966-09-26 | 1969-06-24 | Eugene Alessio | Light bulb socket adapter |
| US3484864A (en) | 1966-10-20 | 1969-12-16 | Gen Instrument Corp | Combined connector and rectifier |
| US3581480A (en) | 1969-09-30 | 1971-06-01 | Black & Decker Mfg Co | Multiple-function receptacle and interconnecting plugs therefor |
| US3784956A (en) | 1972-06-05 | 1974-01-08 | Gte Automatic Electric Lab Inc | Programmable electrical connector |
| US3870946A (en) | 1973-12-13 | 1975-03-11 | Nordson Corp | Quick connect modular voltage multiplier |
| US3996564A (en) * | 1974-06-26 | 1976-12-07 | International Business Machines Corporation | Input/output port control |
| GB1515701A (en) | 1975-02-19 | 1978-06-28 | Gillette Co | Plug for voltage adaptation |
| US4089041A (en) | 1975-08-07 | 1978-05-09 | Amp Incorporated | Circuit programming device |
| DE2647829A1 (en) | 1976-10-22 | 1978-04-27 | Centra Buerkle Gmbh & Co | MANUALLY PROGRAMMABLE PROGRAM MEMORY |
| US4239319A (en) | 1978-11-13 | 1980-12-16 | General Motors Corporation | Electrical component package for interconnection between plug and socket connectors |
| US4258969A (en) | 1979-11-19 | 1981-03-31 | Stallard Jerrel L | Reversing plug connector |
| US4622627A (en) | 1984-02-16 | 1986-11-11 | Theta-J Corporation | Switching electrical power supply utilizing miniature inductors integrally in a PCB |
| DE3688456T2 (en) | 1985-11-15 | 1993-09-09 | Nec Corp | START CONTROL CIRCUIT FOR ADAPTING A POWER CONVERTER TO DIFFERENT LOADS. |
| US4713642A (en) | 1986-05-07 | 1987-12-15 | Westinghouse Electric Corp. | Face connected instrument transformer |
| US4885674A (en) | 1988-03-28 | 1989-12-05 | Varga Ljubomir D | Synthesis of load-independent switch-mode power converters |
| US5040990A (en) | 1989-05-09 | 1991-08-20 | Prince Corporation | Modular vehicle electronic system |
| US5019954A (en) | 1989-06-23 | 1991-05-28 | Allied-Signal Inc. | AC/DC conversion with reduced supply waveform distortion |
| US5044964A (en) | 1990-07-30 | 1991-09-03 | Xerox Corporation | Programmable connector module |
| US5092788A (en) | 1990-12-03 | 1992-03-03 | Motorola, Inc. | Self-contained universal accessory connector and seal |
| US5455734A (en) | 1991-04-29 | 1995-10-03 | Trw Inc. | Insert device for electrical relays, solenoids, motors, controllers, and the like |
| US5181859A (en) | 1991-04-29 | 1993-01-26 | Trw Inc. | Electrical connector circuit wafer |
| US5428288A (en) | 1991-04-29 | 1995-06-27 | Trw Inc. | Microelectric monitoring device |
| US5241217A (en) * | 1991-11-07 | 1993-08-31 | Premier Power, Inc. | UPS with input commutation between AC and DC sources of power |
| EP0558876A1 (en) | 1992-03-03 | 1993-09-08 | STMicroelectronics S.r.l. | A semiconductor device package with shaped parts for direct coupling to standard connectors |
| US5347211A (en) | 1993-03-11 | 1994-09-13 | Innova Electronics Corporation | Selectable output power converter |
| US5369352A (en) | 1993-04-26 | 1994-11-29 | Ford Motor Company | Universal electric vehicle charging adapter |
| US5414610A (en) | 1993-06-21 | 1995-05-09 | Ast Research, Inc. | Universal power converter with single, shared power transformation circuit |
| US5621299A (en) | 1994-01-27 | 1997-04-15 | David A. Krall | Rechargeable battery power supply with load voltage sensing, selectable output voltage and a wrist rest |
| US5838554A (en) | 1994-04-26 | 1998-11-17 | Comarco Wireless Technologies, Inc. | Small form factor power supply |
| US5479331A (en) | 1994-04-26 | 1995-12-26 | Comarco Wireless Technologies, Inc. | Small form factor power supply |
| US6172884B1 (en) | 1994-04-26 | 2001-01-09 | Comarco Wireless Technologies, Inc. | Small form factor power supply for powering electronics appliances |
| US5949213A (en) | 1994-04-26 | 1999-09-07 | Comarco Wireless Technologies, Inc. | Method and system for charging rechargeable batteries |
| US6091611A (en) | 1994-04-26 | 2000-07-18 | Comarco Wireless Technologies, Inc. | Connectors adapted for controlling a small form factor power supply |
| US5636110A (en) | 1994-04-26 | 1997-06-03 | Comarco Wireless Technologies, Inc. | Small form factor power supply |
| TW300314B (en) | 1995-06-08 | 1997-03-11 | Tokyo Electron Co Ltd | |
| USD391227S (en) | 1996-01-29 | 1998-02-24 | Empire Engineering | Smart adapter |
| US5715156A (en) * | 1996-06-24 | 1998-02-03 | Yilmaz; G. George | Method and apparatus for providing AC or DC power for battery powered tools |
| US5731693A (en) | 1996-10-23 | 1998-03-24 | Eldec Corporation (A Washington Corporation) | Power supply for cellular communication stations |
| US5801513A (en) | 1996-12-31 | 1998-09-01 | Motorola, Inc. | Apparatus for charging batteries and supplying backup power |
| US5886422A (en) | 1997-07-30 | 1999-03-23 | Spartec International Corporation | Universal electric power controller |
| US5901056A (en) | 1997-12-03 | 1999-05-04 | Hung; Sheng-Chuan | DC power supply device adapted to operate with an AC power supply or with a car battery via a cigarette lighter |
| JP2000014043A (en) | 1998-06-05 | 2000-01-14 | Internatl Business Mach Corp <Ibm> | Uninterruptive power supply |
| ATE433221T1 (en) | 1998-11-16 | 2009-06-15 | Alcatel Lucent | UNIVERSAL SWITCHING CURRENT TRANSFORMER |
| US6064177A (en) * | 1999-01-05 | 2000-05-16 | Dixon; Steven C. | Two-part battery charger/power cable article with multiple device capability |
| US6137280A (en) | 1999-01-22 | 2000-10-24 | Science Applications International Corporation | Universal power manager with variable buck/boost converter |
| US6134125A (en) * | 1999-05-17 | 2000-10-17 | Stmicroelectronics, Inc. | AC and DC input power supply |
| US6483730B2 (en) * | 1999-08-13 | 2002-11-19 | Powerware Corporation | Power converters with AC and DC operating modes and methods of operation thereof |
| US6278624B1 (en) | 1999-12-01 | 2001-08-21 | Hewlett-Packard Company | High availability DC power supply with isolated inputs, diode-or-connected outputs, and power factor correction |
| JP3304944B2 (en) | 2000-02-07 | 2002-07-22 | 株式会社ニプロン | Uninterruptible switching regulator |
| US6297972B1 (en) * | 2000-05-10 | 2001-10-02 | Qing Chen | Backup power stage associated with a dual input power supply and method of operating the same |
| KR100386857B1 (en) * | 2000-12-13 | 2003-06-09 | (주)에스피에스 | The power input unit for using both AC and DC |
| US6643158B2 (en) * | 2001-10-31 | 2003-11-04 | Mobility Electronics, Inc. | Dual input AC/DC to programmable DC output converter |
-
2001
- 2001-12-03 US US10/005,961 patent/US6643158B2/en not_active Expired - Fee Related
-
2002
- 2002-02-08 KR KR1020047002345A patent/KR100636611B1/en not_active IP Right Cessation
- 2002-02-08 DE DE02707726T patent/DE02707726T1/en active Pending
- 2002-02-08 ES ES02707726T patent/ES2217995T3/en not_active Expired - Lifetime
- 2002-02-08 RU RU2004104345/09A patent/RU2274939C2/en not_active IP Right Cessation
- 2002-02-08 WO PCT/US2002/003542 patent/WO2003038981A1/en active IP Right Grant
- 2002-02-08 AU AU2002242115A patent/AU2002242115B2/en not_active Ceased
- 2002-02-08 JP JP2003541122A patent/JP2005507629A/en active Pending
- 2002-02-08 AT AT02707726T patent/ATE306140T1/en not_active IP Right Cessation
- 2002-02-08 RU RU2005139542/09A patent/RU2308143C1/en not_active IP Right Cessation
- 2002-02-08 CA CA002454044A patent/CA2454044C/en not_active Expired - Fee Related
- 2002-02-08 TR TR2004/00659T patent/TR200400659T3/xx unknown
- 2002-02-08 IL IL16016702A patent/IL160167A0/en active IP Right Grant
- 2002-02-08 CN CNA028157648A patent/CN1541439A/en active Pending
- 2002-02-08 EP EP02707726A patent/EP1440502B1/en not_active Expired - Lifetime
- 2002-02-08 DE DE60206519T patent/DE60206519T2/en not_active Expired - Lifetime
- 2002-10-30 WO PCT/US2002/034748 patent/WO2003038978A1/en not_active Application Discontinuation
-
2003
- 2003-09-12 US US10/661,216 patent/US6775163B2/en not_active Expired - Fee Related
-
2004
- 2004-02-02 IL IL160167A patent/IL160167A/en not_active IP Right Cessation
- 2004-02-02 NO NO20040455A patent/NO326380B1/en not_active IP Right Cessation
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