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US5270904A
Expired / Lapsed
US
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Switching power apparatus with 3-state driver
Assignee: Individual
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Filing: 1990-05-02
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Granted: 1993-12-14
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Expires: 2010-05-02
Abstract
Abstract The switching power apparatus has high efficiency, high reliability and very small number of components. A power transformer is used if line isolation is necessary. The apparatus is operable with almost any configuration comprising at least one bidirectional or two unidirectional switches for producing AC or DC outupt signal. The switching is minimized with increasing output signal level as to maximize the efficiency but with no significant deterioration of the harmonic distortion level. A resistor divider provides two feedback signals in response to the output signal. Two comparators compare the input signal against the feedback signals and provide two comparison signals. Two flip-flops temporarily store the comparison signals. A switching amplifier provides the output signal in response to the comparison signals stored in the flip-flops. If output signal correction is unnecessary, the switching amplifier is in idle state.
Inventors
- 👤 Zdzislaw Gulczynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:53
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/538; H02M7/53803; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1588; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
Switching power apparatus providing output signal in response to input signal, comprising: a resistive means for providing a pair of feedback signals in response to the output signal; a pair of comparator means for comparing the input signal against the feedback signals and providing a pair of comparison signals; a register means for interim storage of the comparison signals; and an amplifier means for providing the output signal in response to the comparison signals stored in the register means.
Claim 2
Dependent Claim
79 words
Switching power apparatus providing output signal in response to input signal, comprising: a resistive means for providing a pair of feedback signals in response to the output signal; a pair of comparator means for comparing the input signal against the feedback signals and providing a pair of comparison signals; a register means for interim storage of the comparison signals; and an amplifier means for providing the output signal in response to the comparison signals stored in the register means.
Claim 3
Dependent Claim
19 words
Switching power apparatus of claim 1 wherein the amplifier means includes an inductive means for providing the output signal.
Claim 4
Dependent Claim
51 words
Switching power apparatus of claim 2 wherein the amplifier means includes: a voltage source means for providing one or two supply voltages; and a pair of switching means each for selectively coupling the inductive means to the voltage source means in response to the comparison signals stored in the register means.
Claim 5
Dependent Claim
41 words
Switching power apparatus of claim 3 wherein each switching means includes a nonlinear means for receiving the comparison signals stored in the register means, and further wherein one of the nonlinear means is enabled while the other nonlinear means is disabled.
Claim 6
Dependent Claim
19 words
Switching power apparatus of claim 3 wherein each switching means includes a transistor and diode coupled in parallel therewith.
Claim 7
Dependent Claim
30 words
Switching power apparatus of claim 3 wherein at least one switching means includes a means for causing a delay in response to the comparison signals stored in the register means.
Claim 8
Dependent Claim
49 words
Switching power apparatus of claim 3 wherein at least one switching means includes: a second resistive means for providing a voltage in response to an excessive current conducted by the switching means; and a monoflop means for disabling the switching means in response to the second resistive means voltage.
Claim 9
Dependent Claim
13 words
Switching power apparatus of claim 2 wherein the inductive means includes a transformer.
Claim 10
Dependent Claim
19 words
Switching power apparatus of claim 2 wherein the amplifier means includes a capacitive means for storing the output signal.
Claim 11
Dependent Claim
27 words
Switching power apparatus of claim 2 wherein the amplifier means includes a second inductive means coupled in series with said first inductive means for attaining a current.
Claim 12
Dependent Claim
35 words
Switching power apparatus of claim 10 wherein the amplifier means includes a capacitive means for storing a voltage in response to the current, and further wherein said first inductive means is responsive to the voltage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-13 | 1997-06-14 | 1997-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-13 | 2001-06-14 | 2001-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-13 | 2005-06-14 | 2005-12-14 | $7700.00 | Window Closed / Lapsed |