US5146399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching power apparatus having high factor and comprising pair of converter for obtaining fixed or variable output voltage
Assignee: Individual
•
Filing: 1991-03-11
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Granted: 1992-09-08
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Expires: 2011-03-11
Abstract
Abstract The switching power supply has high output power, high efficiency and fixed or variable output voltage. The input voltage may be AC or DC. Preferably, the input current is sinusoidal. Reduced peak currents of switches result in best possible line and component utilizations at any time. In one embodiment, a first converter has an output for converting DC input voltage into a base voltage. A first capacitor is coupled between the DC input voltage and first converter output for storing the base voltage. A second converter is coupled to the first converter output for determining the output voltage. A second capacitor filters the output voltage. Both converters are referenced to ground. A diode applies the DC input voltage to the output.
Inventors
- 👤 Jeff Gucyski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:34
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/42; H02M1/4208; H02M1/10; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; Y; Y02; Y02B; Y02B70/00; Y02B70/10; Y02P; Y02P80/00; Y02P80/10
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
94 words
Switching power supply converting pulsating DC input voltage applied to an input into output voltage, comprising: a first converter means having a first output for converting the DC input voltage into a base voltage; a first capacitive means coupled between the input and first output for storing the base voltage; a second converter means having a second output for converting a voltage appearing at the first output into the output voltage appearing at the second output; and a second capacitive means coupled between the first output and second output for filtering the output voltage.
Claim 2
Dependent Claim
94 words
Switching power supply converting pulsating DC input voltage applied to an input into output voltage, comprising: a first converter means having a first output for converting the DC input voltage into a base voltage; a first capacitive means coupled between the input and first output for storing the base voltage; a second converter means having a second output for converting a voltage appearing at the first output into the output voltage appearing at the second output; and a second capacitive means coupled between the first output and second output for filtering the output voltage.
Claim 3
Dependent Claim
46 words
Switching power supply of claim 1 wherein the first converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means between the input and ground; and a rectifying means for applying the current to the first output means.
Claim 4
Dependent Claim
42 words
Switching power supply of claim 1 wherein the second converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means to the first output; and a rectifying means for applying the current to ground.
Claim 5
Dependent Claim
46 words
Switching power supply of claim 1 wherein the second converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means between the first output and ground; and a rectifying means for applying the current to the second output.
Claim 6
Dependent Claim
41 words
Switching power supply of claim 1 wherein at least one converter means includes an inductive means for attaining a current, and further including a switching means coupled in series with the inductive means for preventing an excessive value of the current.
Claim 7
Dependent Claim
21 words
Switching power supply of claim 1 further including an input capacitive means coupled to the input for reducing input current spikes.
Claim 8
Dependent Claim
23 words
Switching power supply of claim 1 further including a rectifying means for rectifying an AC input voltage and providing the DC input voltage.
Claim 9
Dependent Claim
28 words
Switching power supply of claim 1 further including a rectifying means coupled to the input for conducting a current when the DC input voltage is substantially equal zero.
Claim 10
Dependent Claim
28 words
Switching power supply of claim 1 further including a rectifying means coupled between the input and second output for applying the DC input voltage to the output voltage.
Claim 11
Dependent Claim
17 words
Switching power supply of claim 1 wherein the second capacitive means includes a capacitor coupled to ground.
Claim 12
Dependent Claim
93 words
Switching power supply converting pulsating DC input voltage applied to an input into output voltage, comprising: a first converter means having a first output for converting the DC input voltage into a base voltage; a first capacitive means coupled between the input and first output for storing the base voltage; a second converter means having a second output for converting a voltage appearing at the first output into the output voltage appearing at the second output; and a second capacitive means coupled between the second output and ground for filtering the output voltage.
Claim 13
Dependent Claim
93 words
Switching power supply converting pulsating DC input voltage applied to an input into output voltage, comprising: a first converter means having a first output for converting the DC input voltage into a base voltage; a first capacitive means coupled between the input and first output for storing the base voltage; a second converter means having a second output for converting a voltage appearing at the first output into the output voltage appearing at the second output; and a second capacitive means coupled between the second output and ground for filtering the output voltage.
Claim 14
Dependent Claim
45 words
Switching power supply of claim 11 wherein the first converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means between the input and ground; and a rectifying means for applying the current to the first output.
Claim 15
Dependent Claim
42 words
Switching power supply of claim 11 wherein the second converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means to the first output; and a rectifying means for applying the current to ground.
Claim 16
Dependent Claim
46 words
Switching power supply of claim 11 wherein the second converter means includes: an inductive means for attaining a current; a switching means for selectively coupling the inductive means between the first output and ground; and a rectifying means for applying the current to the second output.
Claim 17
Dependent Claim
41 words
Switching power supply of claim 11 wherein at least one converter means includes an inductive means for attaining a current, and further including a switching means coupled in series with the inductive means for preventing an excessive value of the current.
Claim 18
Dependent Claim
20 words
Switching power supply of 11 further including an input capacitive means coupled to the input for reducing input current spikes.
Claim 19
Dependent Claim
20 words
Switching power supply of 11 further including an input capacitive means coupled to the input for reducing input current spikes.
Claim 20
Dependent Claim
23 words
Switching power supply of claim 11 further including a rectifying means for rectifying an AC input voltage and providing the DC input voltage.
Claim 21
Dependent Claim
28 words
Switching power supply of claim 11 further including a rectifying means coupled to the input for conducting a current when the DC input voltage is substantially equal zero.
Claim 22
Dependent Claim
28 words
Switching power supply of claim 11 further including a rectifying means coupled between the input and second output for applying the DC input voltage to the output voltage.
Claim 23
Dependent Claim
19 words
Switching power supply of claim 11 wherein the second capacitive means includes a capacitor coupled to the first output.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |