US4016461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting circuit for switching regulator
Assignee: TE Connectivity Corp
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Filing: 1976-05-06
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Granted: 1977-04-05
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Expires: 1996-05-06
Abstract
Abstract In a transistor switching type voltage regulation circuit, energy precharge is provided in a by-pass loop around the switching transistor. The instantaneous peak power dissipation at turn-on through the switching transistor is thereby diminished, greatly increasing the reliability of the switching transistor.
Inventors
- 👤 John Thomas Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; Y; Y10; Y10S; Y10S323/00; Y10S323/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
In a switching regulator for controlled output voltage having an input for unregulated DC and a switching transistor connected between a charging capacitor and an output load capacitor, the improvement comprising: an energy storing capacitor in parallel with both said charging capacitor and said switching transistor, and a rectifier between said energy storing capacitor and said output load capacitor, whereby the energy dissipated from said charging capacitor through said switching transistor is lessened by the energy dissipated from said energy storing capacitor directly to said output load capacitor upon turn-on of said switching transistor.
Claim 2
Dependent Claim
94 words
In a switching regulator for controlled output voltage having an input for unregulated DC and a switching transistor connected between a charging capacitor and an output load capacitor, the improvement comprising: an energy storing capacitor in parallel with both said charging capacitor and said switching transistor, and a rectifier between said energy storing capacitor and said output load capacitor, whereby the energy dissipated from said charging capacitor through said switching transistor is lessened by the energy dissipated from said energy storing capacitor directly to said output load capacitor upon turn-on of said switching transistor.
Claim 3
Dependent Claim
23 words
The structure of claim 1 wherein said energy storing capacitor is connected between the unregulated DC input and the output load supplying capacitor.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |