US4876460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uninterrupted power supply
Assignee: Ametek Intellipower Inc
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Filing: 1989-03-27
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Granted: 1989-10-24
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Expires: 2009-03-27
Abstract
Abstract A continuous uninterrupted power supply (UPS) having microprocessor control DC circuitry is disclosed. The UPS comprises a regulator for converting an AC line signal to a regulated DC signal. The regulator may include an AC/DC converter connected to an AC input line for converting the AC input signal for generating a DC signal from an AC input signal. A filter circuit is provided within the regulator for filtering the converted DC signal. A backup DC source and a series diode are also provided within the regulator for connecting a backup source to the converted DC signal when the DC signal is less than a predetermined signal level. A DC/DC converter is provided within the regulator for controlling the converted DC signal level. A DC/AC converter is connected to the regulator for receiving the regulated DC signal and generating an output AC signal therefrom. A microprocessor controller regulates the operation of the DC/AC converter. The microprocessor controller is connected to the DC/AC converter by means of a plurality of control line pairs, each control line pair including an unfiltered control line and a return line disposed proximate thereto.
Inventors
- 👤 Ronald W. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:22
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/062
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
118 words
A continuous uninterrupted power supply (UPS) having microprocessor controlled switching circuitry, comprising: a regulator circuit for receiving an AC input line signal and for generating a regulated DC signal therefrom; a DC/AC converter connected to said regulator for receiving said regulated DC signal and generating an output AC signal therefrom; and a microprocessor controller connected to said DC/AC converter for controlling the operation thereof, said microprocessor being connected to said DC/AC converter by a plurality of signal line pairs, each of said pairs including a control line and a return line, said control line and said return line being disposed in close proximity such that signals induced in said control line are also induced in said return line.
Claim 2
Dependent Claim
118 words
A continuous uninterrupted power supply (UPS) having microprocessor controlled switching circuitry, comprising: a regulator circuit for receiving an AC input line signal and for generating a regulated DC signal therefrom; a DC/AC converter connected to said regulator for receiving said regulated DC signal and generating an output AC signal therefrom; and a microprocessor controller connected to said DC/AC converter for controlling the operation thereof, said microprocessor being connected to said DC/AC converter by a plurality of signal line pairs, each of said pairs including a control line and a return line, said control line and said return line being disposed in close proximity such that signals induced in said control line are also induced in said return line.
Claim 3
Dependent Claim
15 words
The UPS as recited in claim 1 wherein said microprocessor comprises a single chip microprocessor.
Claim 4
Dependent Claim
23 words
The UPS as recited in claim 1 wherein said control line and said return line are spaced approximately 0.025 inches from each other.
Claim 5
Dependent Claim
27 words
The UPS as recited in claim 1 wherein said signal line pairs are operative to mitigate harmful effects of induced signals on the operation of said microprocessor.
Claim 6
Dependent Claim
21 words
The UPS as recited in claim 1 wherein said DC/AC converter and said microprocessor are disposed on a common circuit board.
Claim 7
Dependent Claim
27 words
The UPS as recited in claim 1 wherein the proximity between said control line and return line precludes voltages from being induced in the control line alone.
Claim 8
Dependent Claim
22 words
The UPS as recited in claim 6 further comprising a plurality of control line pairs interconnecting the microprocessor and the DC/AC converter.
Claim 9
Dependent Claim
183 words
A continuous uninterrupted power supply (UPS) having microprocessor controlled DC switching circuitry, comprising: a regulator circuit for receiving an AC input line signal and for generating a regulated DC signal therefrom, said regulator circuit including: (a) line for converting an AC input signal to a converted DC signal; (b) a filter circuit for filtering the converted DC signal; (c) a backup DC source; (d) a diode disposed intermediate the backup source and the converted DC signal for communicating the backup DC source to the converted DC signal when the DC signal is less than a predetermined signal level; (e) a DC/DC converter for receiving the converted DC signal and regulating the converted DC signal level; a DC/AC converter connected to the regulator circuit for receiving the regulated DC signal and generating an output AC signal therefrom; a microprocessor controller for regulating the operation of the DC/AC converter, said microprocessor controller being connected to the DC/AC converter by means of a plurality of control line pairs, each of said control line pairs including an unfiltered control line and a return line disposed proximate thereto.
Claim 10
Dependent Claim
183 words
A continuous uninterrupted power supply (UPS) having microprocessor controlled DC switching circuitry, comprising: a regulator circuit for receiving an AC input line signal and for generating a regulated DC signal therefrom, said regulator circuit including: (a) line for converting an AC input signal to a converted DC signal; (b) a filter circuit for filtering the converted DC signal; (c) a backup DC source; (d) a diode disposed intermediate the backup source and the converted DC signal for communicating the backup DC source to the converted DC signal when the DC signal is less than a predetermined signal level; (e) a DC/DC converter for receiving the converted DC signal and regulating the converted DC signal level; a DC/AC converter connected to the regulator circuit for receiving the regulated DC signal and generating an output AC signal therefrom; a microprocessor controller for regulating the operation of the DC/AC converter, said microprocessor controller being connected to the DC/AC converter by means of a plurality of control line pairs, each of said control line pairs including an unfiltered control line and a return line disposed proximate thereto.
Claim 11
Dependent Claim
29 words
The UPS as recited in claim 8 wherein each of the control line pairs comprise an unfiltered control line and a return line physically disposed approximately 0.025 inches therefrom.
Claim 12
Dependent Claim
15 words
The UPS as recited in claim 8 wherein the microprocessor is a single chip microprocessor.
Claim 13
Dependent Claim
20 words
The UPS as recited in claim 8 wherein the microprocessor is disposed on the same card as the DC/AC converter.
Claim 14
Dependent Claim
26 words
The UPS as recited in claim 8 wherein the DC/DC converter comprises voltage clamping circuitry for regulating the DC voltage level communicated to the DC/AC converter.
Claim 15
Dependent Claim
15 words
The UPS as recited in claim 8 wherein the DC/AC converter comprises a bridge circuit.
Claim 16
Dependent Claim
29 words
The UPS as recited in claim 8 wherein the DC/DC converter comprises current limiting circuitry for limiting the current of the regulated DC signal communicated to the DC/AC converter.
Claim 17
Dependent Claim
33 words
The UPS as recited in claim 8 wherein the microprocessor is operative to track the frequency of the AC input signal and to regulate the operation of the DC/AC converter in response thereto.
Claim 18
Dependent Claim
26 words
The UPS as recited in claim 8 wherein the microprocessor is operative to phase lock the operation of the DC/AC converter to the AC input signal.
Claim 19
Dependent Claim
39 words
The UPS as recited in claim 8 wherein the microprocessor is operative to disable voltage supply signals to the DC/DC converter and DC/AC converter to substantially zero levels until such time as the microprocessor has initialized selected UPS circuits.
Claim 20
Dependent Claim
34 words
The UPS as recited in claim 8 wherein the microprocessor is operative to disable voltage supply signals to the DC/DC converter and DC/AC converter upon occurrence of predetermined signal conditions in the UPS circuit.
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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) | 1992-10-23 | 1993-04-24 | 1993-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-23 | 1997-04-24 | 1997-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-23 | 2001-04-24 | 2001-10-24 | $7700.00 | Window Closed / Lapsed |