Patent US4253139A successfully refreshed from Google Patents.
US4253139A
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US
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Power conversion and regulation system
Assignee: Unisys Corp
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Filing: 1978-11-30
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Granted: 1981-02-24
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Expires: 1998-11-30
Abstract
Abstract A DC or AC power conversion and regulation system in which DC or rectified AC is applied to a voltage controlled oscillator (VCO). The output of the VCO is applied to a frequency sensitive filter whose frequency response is such that for a fixed input voltage the output voltage is a function of the input frequency. The output of the filter is applied to a transformer whose output may be rectified to provide a regulated DC output. A portion of the rectified DC is sampled and compared with a reference voltage to generate an error signal which is used in a feedback loop to control the operating frequency of the VCO.
Inventors
- 👤 Ernest Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:28
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
134 words
A method of converting and regulating electrical power comprising the steps of: applying DC power to the input of an AC generator means to produce an AC output at a given frequency; applying said AC output to a frequency sensitive filter means, said means characterized in that its output amplitude is a function of its input frequency only; sampling and rectifying a portion of said output of said frequency sensitive filter means; applying said sampled output to a voltage reference comparison means to generate an error signal; and applying said error signal to a frequency controlling means connected to said AC generator to vary said frequency of said AC generator output in accordance with said sampled output of said frequency sensitive filter means to cause said sampled output to assume a steady regulated value.
Claim 2
Independent Claim
134 words
A method of converting and regulating electrical power comprising the steps of: applying DC power to the input of an AC generator means to produce an AC output at a given frequency; applying said AC output to a frequency sensitive filter means, said means characterized in that its output amplitude is a function of its input frequency only; sampling and rectifying a portion of said output of said frequency sensitive filter means; applying said sampled output to a voltage reference comparison means to generate an error signal; and applying said error signal to a frequency controlling means connected to said AC generator to vary said frequency of said AC generator output in accordance with said sampled output of said frequency sensitive filter means to cause said sampled output to assume a steady regulated value.
Claim 3
Dependent Claim
35 words
The method of claim 1 wherein the step of applying DC power to the input of an AC generator means may further include the step of converting an AC power input into said DC power.
Claim 4
Dependent Claim
33 words
The method of claim 1 wherein the step of applying an AC output from said AC generator means to a frequency sensitive filter means comprises applying said AC output to an OTT filter.
Claim 5
Dependent Claim
39 words
The method of claim 1 wherein said step of applying an AC output to a frequency sensitive filter means may further include the step of applying said output of said frequency sensitive filter means to a voltage transformer means.
Claim 6
Dependent Claim
24 words
The method of claim 4 further including the step of applying an output from said transformer means to a cycle and/or frequency converting means.
Claim 7
Dependent Claim
25 words
The method of claim 1 further including the step of rectifying said output of said frequency sensitive filter means to produce a regulated DC output.
Claim 8
Dependent Claim
132 words
An electrical power conversion and regulation system comprising: a DC power input; means connected to said DC input for generating an AC output at a given frequency; frequency sensitive filter means connected to said AC output, said means characterized in that its output amplitude is a function of its input frequency only; means connected to said output of said frequency sensitive filter means for sampling and rectifying a portion of said output of said frequency sensitive filter means. voltage reference comparison means connected to said sampling and rectifying means to generate an error signal; and frequency sensitive filter means connected to said AC generator means and responsive to said AC output of said AC generator means to cause said output of said frequency sensitive filter means to assume a steady regulated value.
Claim 9
Dependent Claim
132 words
An electrical power conversion and regulation system comprising: a DC power input; means connected to said DC input for generating an AC output at a given frequency; frequency sensitive filter means connected to said AC output, said means characterized in that its output amplitude is a function of its input frequency only; means connected to said output of said frequency sensitive filter means for sampling and rectifying a portion of said output of said frequency sensitive filter means. voltage reference comparison means connected to said sampling and rectifying means to generate an error signal; and frequency sensitive filter means connected to said AC generator means and responsive to said AC output of said AC generator means to cause said output of said frequency sensitive filter means to assume a steady regulated value.
Claim 10
Dependent Claim
30 words
The system of claim 7 wherein said system may further include an unregulated AC input and an AC-to-DC converter connected to said AC input to generate said DC power input.
Claim 11
Dependent Claim
35 words
The system of claim 7 wherein said frequency discriminating means comprises a frequency sensitive filter, said filter having an AC output amplitude which is a function solely of an input frequency applied to said filter.
Claim 12
Dependent Claim
12 words
The system of claim 7 wherein said filter comprises an OTT filter.
Claim 13
Dependent Claim
21 words
The system of claim 7 further including a voltage transformer means connected to said output of said frequency sensitive filter means.
Claim 14
Dependent Claim
21 words
The system of claim 11 further including a cycle and/or frequency conversion means connected to an output of said transformer means.
Claim 15
Dependent Claim
26 words
The system of claim 7 further including rectifying means connected to said output of said frequency sensitive filter means to produce a regulated DC output therefrom.
Claim 16
Dependent Claim
15 words
The system of claim 7 wherein said frequency controlling means comprises a voltage-to-frequency converter/driver means.
Claim 17
Dependent Claim
152 words
An electrical power conversion and regulation system comprising: an unregulated DC power input; a voltage controlled oscillator connected to said DC input for generating an AC output at a given frequency; a frequency sensitive filter means connected to said AC output, said means characterized in that its output amplitude is a function of its input frequency only; an output sample signal line including a rectifying means, said signal line connected to said output of said filter means to generate a sample signal; a voltage comparator having as a first input said sample signal and as a second input a reference voltage, said voltage comparator having an output connected to said voltage controlled oscillator for generating a control signal in response to a comparison of said first and second inputs to control said AC generator output frequency so as to cause said output of said filter means to assume a steady regulated value.
Claim 18
Dependent Claim
152 words
An electrical power conversion and regulation system comprising: an unregulated DC power input; a voltage controlled oscillator connected to said DC input for generating an AC output at a given frequency; a frequency sensitive filter means connected to said AC output, said means characterized in that its output amplitude is a function of its input frequency only; an output sample signal line including a rectifying means, said signal line connected to said output of said filter means to generate a sample signal; a voltage comparator having as a first input said sample signal and as a second input a reference voltage, said voltage comparator having an output connected to said voltage controlled oscillator for generating a control signal in response to a comparison of said first and second inputs to control said AC generator output frequency so as to cause said output of said filter means to assume a steady regulated value.
Claim 19
Dependent Claim
13 words
The system of claim 15 wherein said filter means comprises an OTT filter.
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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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |