IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0244532
(2011-09-25)
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등록번호 |
US-8405249
(2013-03-26)
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발명자
/ 주소 |
- Leadingham, David Wayne
- Hansen, Richard Lawrence
- Johnson, Drew Robert
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
1 |
초록
▼
An airplane ground support system includes a multi-voltage power supply. A control system within the power conversion module receives measurements to regulate the power module's output to a predetermined preset voltage level as mandated by the power output selection signal. In an alternate embodimen
An airplane ground support system includes a multi-voltage power supply. A control system within the power conversion module receives measurements to regulate the power module's output to a predetermined preset voltage level as mandated by the power output selection signal. In an alternate embodiment a multi-voltage or upgradable power supply has A.C. and D.C. capability, A.C. only capability with an upgrade kit available to add D.C. capability in addition to the A.C. capability, D.C. only capability with an upgrade kit available to add A.C. capability in addition to the D.C. capability.
대표청구항
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1. A multi-voltage power supply comprising: a control module having a display and a processor, the display and processor presenting an airplane type or class selection menu to airplane support technicians and responding to the selection of a type or class of airplane by generating a power output sel
1. A multi-voltage power supply comprising: a control module having a display and a processor, the display and processor presenting an airplane type or class selection menu to airplane support technicians and responding to the selection of a type or class of airplane by generating a power output selection signal designating the type of power needed by the selected type or class of airplane;a power supply module receiving the power output selection signal and having an A.C. power input, at least one A.C. power output and at least one D.C. power output;a sine wave synthesizer within said power supply module having a D.C. power input, a synthesized A.C. power output, and having as input one or more sine wave synthesizing control signals;a first connection between the power supply module's A.C. power input and the synthesizer's D.C. power input, said first connection comprising a first rectifier;a second connection between the synthesizer's A.C. power output and the power supply module's A.C. power output;a third connection between the synthesizer's A.C. power output and the power supply module's D.C. power output, said third connection comprising a second rectifier; anda control system receiving measurements of voltages at the power supply module's power output and also receiving the power output selection signal, the control system generating the one or more sine wave synthesizing control signals to maintain a predetermined A.C. or D.C. preset voltage level at the power supply module's A.C. or D.C. power output in response to the power output selection signal. 2. A multi-voltage power supply in accordance with claim 1 wherein: the second connection between the synthesized A.C. power output and the module's A.C. power output comprises a first switch controlled by a first switch closure signal;the third connection between the synthesized A.C. power output and the module's D.C. power output comprises the second rectifier connected in series with a second switch controlled by a second switch closure signal; andthe control system generates the first switch closure signal when A.C. power is selected by the power output selection signal and generates the second switch closure signal when D.C. power is selected by the power output selection signal. 3. A multi-voltage power supply in accordance with claim 1 wherein: the first connection between the module's A.C. power input to the synthesizer's D.C. power input comprises a 3-phase transformer having delta and Y outputs connected in series with the first rectifier such that the first rectifier rectifies the delta and the Y power signals;the sine wave synthesizer A.C. output generates a multi-phase, 400 Hz switching signal that is filtered by passage through a multi-phase transformer having capacitors connected across its output terminals; andwherein a clamp circuit controlled by a clamping signal is connected across at least one of the module's power outputs, the control system generating the clamping signal in response to measurements of reverse power flow into that power output. 4. A multi-voltage power supply in accordance with claim 1 wherein a disconnect circuit controlled by a disconnect signal is connected in series with one of the connections to at least one of the module's power outputs, the control system generating the disconnect signal in response to measurements of improper power flow at that power output. 5. A multi-voltage power supply in accordance with claim 1 wherein the control system receives a selected output power command from a user interface, the control system generating the sine wave synthesizing control signals and adjusting them to regulate whichever output signal, A.C. or D.C., is selected by the user interface so that selected output power is maintained at a predetermined A.C. or D.C. preset voltage level. 6. A multi-voltage power supply in accordance with claim 1 wherein the sine wave synthesizer A.C. output is 400 Hz at or near 115 volts. 7. A multi-voltage power supply in accordance with claim 1 wherein the D.C. output is maintained either at or near 270 volts or at or near 28 volts according to the power output selection signal. 8. A multi-voltage power supply comprising: a processor generating a power output selection signal;a power supply module comprising circuitry and mechanical structure with an upgrade kit thereat, said module including said upgrade kit receiving the power output selection signal and having an A.C. power input, at least one A.C. power output and at least one D.C. power output;a sine wave synthesizer within said module having a D.C. power input, a synthesized A.C. power output, and having as input one or more sine wave synthesizing control signals;a first connection between the module's A.C. power input and the synthesizer's D.C. power input, said first connection comprising a first rectifier;a second connection between the synthesizer's A.C. power output and the module's A.C. power output;said upgrade kit at said mechanical structure including an upgrade rectifier assembly comprising a second rectifier and at least one switch adding a third connection between the synthesizer's A.C. power output and the module's D.C. power output; anda control system receiving measurements of voltages at the module's A.C. power output and at the module's D.C. power output, and also receiving the power output selection signal, the control system generating the one or more sine wave synthesizing control signals to maintain a predetermined A.C. or D.C. preset voltage level at the module's A.C. or D.C. power output in response to the power output selection signal. 9. A power supply in accordance with claim 8 wherein: the second connection between the synthesized A.C. power output and the module's A.C. power output comprises a first switch controlled by a first switch closure signal;the upgrade kit comprises the second rectifier connected in series with a second switch controlled by a second switch closure signal; andthe control system generates the first switch closure signal when A.C. power is selected by the power output selection signal, and generates the second switch closure signal when D.C. power is selected by the power output selection signal. 10. A power supply in accordance with claim 8 wherein: the first connection between the power supply's A.C. power input to the synthesizer's D.C. power input comprises a 3-phase transformer having delta and Y outputs connected in series with the first rectifier such that the first rectifier rectifies the delta and the Y power signals; andthe sine wave synthesizer A.C. output generates a multi-phase, 400 Hz switching signal that is filtered by passage through a multi-phase transformer having capacitors connected across its output terminals. 11. A power supply in accordance with claim 8 wherein: a clamp circuit controlled by a clamping signal is connected across the power supply outputs, the control system generating the clamping signal in response to measurements of reverse power flow into that power output. 12. A power supply in accordance with claim 8 wherein a disconnect circuit controlled by a disconnect signal is connected in series with the power supply outputs, the control system generating the disconnect signal in response to measurements of improper power flow at that power output; andthe sine wave synthesizer A.C. output is 400 Hz at or near 115 volts. 13. A power supply in accordance with claim 8 wherein a disconnect circuit controlled by a disconnect signal is connected in series with the power supply outputs, the control system generating the disconnect signal in response to measurements of improper power flow at that power output; andthe D.C. output is maintained at or near 270 volts. 14. A multi-voltage power supply comprising: a processor generating a power output selection signal;a power supply module comprising circuitry and mechanical structure with an upgrade kit thereat, said module including said upgrade kit receiving the power output selection signal and having an A.C. power input, at least one A.C. power output and at least one D.C. power output;a sine wave synthesizer within said module having a D.C. power input, a synthesized A.C. power output, and having as input one or more sine wave synthesizing control signals;a first connection between the module's A.C. power input and the synthesizer's D.C. power input, said first connection comprising a first rectifier;said upgrade kit at said mechanical structure comprising at least one switch adding a second connection between the synthesizer's A.C. power output and the module's A.C. power output;a third connection between the synthesizer's A.C. power output and the module's D.C. power output, said third connection comprising a second rectifier; anda control system receiving measurements of voltages at the module's A.C. power output and at the module's D.C. power output, and also receiving the power output selection signal, the control system generating the one or more sine wave synthesizing control signals to maintain a predetermined A.C. or D.C. preset voltage level at the module's A.C. or D.C. power output in response to the power output selection signal. 15. A power supply in accordance with claim 14 wherein: the upgrade kit comprises the at least one switch controlled by a first switch closure signal;the third connection between the synthesized A.C. power output and the module's D.C. power output comprises the second rectifier connected in series with a second switch controlled by a second switch closure signal; andthe control system generates the first switch closure signal when A.C. power is selected by the power output selection signal and generates the second switch closure signal when D.C. power is selected by the power output selection signal. 16. A power supply in accordance with claim 14 wherein: the first connection between the module's A.C. power input to the synthesizer's D.C. power input comprises a 3-phase transformer having delta and Y outputs connected in series with the first rectifier such that the first rectifier rectifies the delta and the Y power signals; andthe sine wave synthesizer A.C. output generates a multi-phase, 400 Hz switching signal that is filtered by passage through a multi-phase transformer having capacitors connected across its output terminals. 17. A power supply in accordance with claim 14 wherein a clamp circuit controlled by a clamping signal is connected across the power supply output, the control system generating the clamping signal in response to measurements of reverse power flow into that power output. 18. A power supply in accordance with claim 14 wherein a disconnect circuit controlled by a disconnect signal is connected in series with the power supply outputs, the control system generating the disconnect signal in response to measurements of improper power flow at that power output; andthe sine wave synthesizer A.C. output is 400 Hz at or near 115 volts. 19. A power supply in accordance with claim 14 wherein a disconnect circuit controlled by a disconnect signal is connected in series with the power supply outputs, the control system generating the disconnect signal in response to measurements of improper power flow at that power output; andthe D.C. output is maintained at or near 270 volts.
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