Source: http://www.google.com/patents/US8190926?dq=oakley+D523,461
Timestamp: 2014-10-01 13:19:59
Document Index: 631746402

Matched Legal Cases: ['Application No. 60', 'Application No. 200780040407', 'Application No. 07813597', 'Application No. 07813597', 'Application No. 2009', 'Application No. 2009', 'Application No. 10', 'Application No. 07813597']

Patent US8190926 - Power combining power supply system - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA power supply system comprises a low-speed power supply and a high-speed power supply configured to operate in first and second frequency ranges, respectively, and generate first and second outputs, respectively. The lower end of the second frequency range is at least higher than a lower end of the...http://www.google.com/patents/US8190926?utm_source=gb-gplus-sharePatent US8190926 - Power combining power supply systemAdvanced Patent SearchPublication numberUS8190926 B2Publication typeGrantApplication numberUS 12/249,717Publication dateMay 29, 2012Filing dateOct 10, 2008Priority dateOct 30, 2006Also published asCN101548476A, CN101548476B, EP2084824A2, EP2084824A4, US7454238, US20080104432, US20090044031, WO2008054906A2, WO2008054906A3Publication number12249717, 249717, US 8190926 B2, US 8190926B2, US-B2-8190926, US8190926 B2, US8190926B2InventorsVikas Vinayak, Serge Francois Drogi, Martin TomaszOriginal AssigneeQuantance, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (38), Non-Patent Citations (11), Referenced by (2), Classifications (14), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetPower combining power supply systemUS 8190926 B2Abstract A power supply system comprises a low-speed power supply and a high-speed power supply configured to operate in first and second frequency ranges, respectively, and generate first and second outputs, respectively. The lower end of the second frequency range is at least higher than a lower end of the first frequency range. A frequency blocking power combiner circuit combines the power from the first output with the power from the second output to generate a combined, third output for driving a load, while providing frequency-selective isolation between the first and second outputs. A feedback circuit is coupled to receive the combined, third output through a global feedback loop. The feedback circuit generates first and second power supply control signals for controlling the low-speed power supply and the high-speed power supply, respectively, based on a difference between the third output and the predetermined control signal.
a first power supply configured to operate in a first frequency range and generate a first output;
a second power supply configured to operate in a second frequency range and generate a second output, a lower end of the second frequency range being at least higher than a lower end of the first frequency range;
a power combiner circuit combining the first output with the second output to generate a third output for driving a load; and
a feedback circuit coupled to receive the third output through a feedback loop, the feedback circuit comparing the third output with a predetermined control signal and generating one or more power supply control signals for controlling the first power supply and the second power supply based on a difference between the third output and the predetermined control signal,
wherein an output impedance of at least one of the first power supply and the second power supply is set to greater than 10% of a minimum equivalent impedance seen at the load of the power supply system.
2. The power supply system of claim 1, wherein the first power supply is a switched mode power supply (SMPS).
3. The power supply system of claim 1, wherein the second power supply is a push-pull regulator.
4. The power supply system of claim 1, wherein the feedback circuit includes an error amplifier comparing the third output with the predetermined control signal to generate said one or more power supply control signals.
5. The power supply system of claim 1, wherein said one or more power supply control signals include a first power supply control signal for controlling the first power supply and a second power supply control signal for controlling the second power supply.
6. The power supply system of claim 5, wherein the feedback circuit includes a low pass filter coupled in series with the first power supply, the first power supply control signal passed through the low pass filter.
7. The power supply system of claim 5, wherein the feedback circuit includes a high pass filter coupled in series with the second power supply, the second power supply control signal passed through the high pass filter.
8. The power supply system of claim 1, wherein the power combiner circuit includes an inductor coupled in series with the first output of the first power supply.
9. The power supply system of claim 8, wherein the power combiner circuit includes a capacitor coupled in series with the second output of the second power supply.
10. The power supply system of claim 1, wherein the power combiner circuit includes a transformer including a primary winding with a first node and a second node and a secondary winding with a third node and a fourth node, the first node coupled to receive the first output, the second node coupled to the load, the third node coupled to ground, and the fourth node coupled to receive the second output.
11. The power supply system of claim 10, wherein the power combiner circuit further includes a capacitor coupled to the first power supply and the fourth node of the transformer on one end and the load on another end, the capacitor reducing effects of a primary leakage inductance of the transformer.
12. The power supply system of claim 11, wherein the power combiner circuit further includes a resistor coupled in series between the capacitor and the load.
generating a first output using a first power supply configured to operate in a first frequency range;
generating a second output using a second power supply configured to operate in a second frequency range, a lower end of the second frequency range being at least higher than a lower end of the first frequency range;
combining the first output with the second output to generate a third output for driving a load; and
providing the third output through a feedback loop and comparing the third output with a predetermined control signal to generate one or more power supply control signals for controlling the first power supply and the second power supply based on a difference between the third output and the predetermined control signal; and
setting an output impedance of at least one of the first power supply and the second power supply to greater than 10% of a minimum equivalent impedance seen at the load.
14. The method of claim 13, wherein said one or more power supply control signals include a first power supply control signal for controlling the first power supply and a second power supply control signal for controlling the second power supply.
15. The method of claim 14, further comprising passing the first power supply control signal through a low pass filter coupled in series with the first power supply.
16. The method of claim 14, further comprising passing the second power supply control signal through a high pass filter coupled in series with the second power supply.
17. The method of claim 13, further comprising passing the first output through an inductor coupled in series with the first power supply.
18. The method of claim 17, further comprising passing the second output through a capacitor coupled in series with the second power supply.
19. The method of claim 13, wherein the first output and the second output are combined using a transformer including a primary winding with a first node and a second node and a secondary winding with a third node and a fourth node, the first node coupled to receive the first output, the second node coupled to a load, the third node coupled to ground, and the fourth node coupled to receive the second output.
20. The method of claim 19, wherein the second output is passed through a capacitor coupled to the first power supply and the fourth node of the transformer on one end and to the load on another end, the capacitor reducing effects of primary leakage inductance of the transformer.
a power combiner circuit combining the first output with the second output to generate a third output for providing the power supply of the RF power amplifier, the RF power amplifier receiving and amplifying a RF input signal to generate a RF output signal under control of the third output; and
a feedback circuit coupled to receive the RF output signal through a feedback loop, the feedback circuit comparing an amplitude of the RF output signal with a predetermined control signal and generating one or more power supply control signals for controlling the first power supply and the second power supply based on a difference between the RF output signal and the predetermined control signal.
22. The power supply system of claim 21, wherein the first power supply is a switched mode power supply (SMPS), and the second power supply is a push-pull regulator.
23. The power supply system of claim 21, wherein said one or more power supply control signals include a first power supply control signal for controlling the first power supply and a second power supply control signal for controlling the second power supply.
24. The power supply system of claim 23, wherein the feedback circuit includes a low pass filter coupled in series with the first power supply, the first power supply control signal being passed through the low pass filter.
25. The power supply system of claim 21, wherein the power combiner circuit includes an inductor coupled in series with the first output of the first power supply, and a capacitor coupled in series with the second output of the second power supply.
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation application of, and claims priority under 35 U.S.C. �120 from, co-pending U.S. patent application Ser. No. 11/685,707, entitled �Power Combining Power Supply System,� filed on Mar. 13, 2007, which claims priority under 35 U.S.C. �119(e) from U.S. Provisional Patent Application No. 60/863,548, entitled �Power Combiner,� filed on Oct. 30, 2006, the subject matters of both of which are incorporated by reference herein in their entirety.
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