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US6037755A
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Switching controller for a buck+boost converter and method of operation thereof
Assignee: TE Connectivity Solutions GmbH
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Filing: 1998-07-07
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Granted: 2000-03-14
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Expires: 2018-07-07
Abstract
Abstract For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, a method of controlling the first and second switches and buck+boost DC/DC power converters employing the switching controller or the method. In one embodiment, the switching controller includes: (1) a regulation circuit that provides a drive signal and (2) a drive signal generator, coupled to the regulation circuit, that generates a pulse of fixed duration based on the drive signal and provides the pulse and the drive signal to the first and second switches. In another embodiment, the switching controller further includes a comparison circuit that compares an input voltage with an output voltage and generates a control signal based thereon to a drive signal generator that routes a pulse and a drive signal to the first and second switches.
Inventors
- 👤 Hengchun Mao
- 👤 Vijayan J. Thottuvelil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:27
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1582; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/62
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
61 words
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, comprising: a regulation circuit that provides a drive signal; and a drive signal generator, coupled to said regulation circuit that generates a pulse of fixed duration based on said drive signal and provides said pulse and said drive signal to said first and second switches.
Claim 2
Dependent Claim
61 words
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, comprising: a regulation circuit that provides a drive signal; and a drive signal generator, coupled to said regulation circuit that generates a pulse of fixed duration based on said drive signal and provides said pulse and said drive signal to said first and second switches.
Claim 3
Dependent Claim
17 words
The switching controller as recited in claim 1 wherein said regulation circuit is a pulse-width-modulation (PWM) controller.
Claim 4
Dependent Claim
17 words
The switching controller as recited in claim 1 wherein said drive signal generator comprises a monostable multivibrator.
Claim 5
Dependent Claim
25 words
The switching controller as recited in claim 1 wherein said drive signal generator generates said pulse based on a rising edge of said drive signal.
Claim 6
Dependent Claim
25 words
The switching controller as recited in claim 1 wherein said drive signal generator generates said pulse based on a trailing edge of said drive signal.
Claim 7
Dependent Claim
21 words
The switching controller as recited in claim 1 wherein said drive signal generator turns said first and second switches ON simultaneously.
Claim 8
Dependent Claim
21 words
The switching controller as recited in claim 1 wherein said drive signal generator turns said first and second switches ON sequentially.
Claim 9
Independent Claim
44 words
A method of controlling a buck+boost DC/DC power converter having first and second switches, comprising: providing a drive signal; generating a pulse of fixed duration based on said drive signal; and routing said pulse and said drive signal to said first and second switches.
Claim 10
Independent Claim
44 words
A method of controlling a buck+boost DC/DC power converter having first and second switches, comprising: providing a drive signal; generating a pulse of fixed duration based on said drive signal; and routing said pulse and said drive signal to said first and second switches.
Claim 11
Dependent Claim
20 words
The method as recited in claim 8 wherein said providing said drive signal comprises providing a pulse-width-modulated (PWM) drive signal.
Claim 12
Dependent Claim
20 words
The method as recited in claim 8 wherein said generating said pulse comprises generating said pulse with a monostable multivibrator.
Claim 13
Dependent Claim
25 words
The method as recited in claim 8 wherein said generating said pulse comprises generating said pulse based on a rising edge of said drive signal.
Claim 14
Dependent Claim
25 words
The method as recited in claim 8 wherein said generating said pulse comprises generating said pulse based on a trailing edge of said drive signal.
Claim 15
Dependent Claim
25 words
The method as recited in claim 8 wherein said routing said pulse and said drive signal comprises turning said first and second switches ON simultaneously.
Claim 16
Dependent Claim
25 words
The method as recited in claim 8 wherein said routing said pulse and said drive signal comprises turning said first and second switches ON sequentially.
Claim 17
Dependent Claim
101 words
A buck+boost DC/DC power converter, comprising: first and second switches, said first switch coupled in series to an input voltage source; first and second diodes coupled to said first and second switches; an inductor and an output capacitor coupled to said first and second diodes; a regulation circuit that senses an output voltage of said power converter and generates a drive signal in response thereto; and a drive signal generator, coupled to said regulation circuit, that generates a pulse of fixed duration based on said drive signal and provides said pulse and said drive signal to said first and second switches.
Claim 18
Dependent Claim
101 words
A buck+boost DC/DC power converter, comprising: first and second switches, said first switch coupled in series to an input voltage source; first and second diodes coupled to said first and second switches; an inductor and an output capacitor coupled to said first and second diodes; a regulation circuit that senses an output voltage of said power converter and generates a drive signal in response thereto; and a drive signal generator, coupled to said regulation circuit, that generates a pulse of fixed duration based on said drive signal and provides said pulse and said drive signal to said first and second switches.
Claim 19
Dependent Claim
94 words
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller comprising: a regulation circuit that provides a drive signal; a comparison circuit that compares input and output voltages of said power converter and generates a control signal based thereon; a pulse circuit, coupled to said regulation circuit, that generates a pulse based on said drive signal; and a switching circuit, coupled to said regulation circuit and said pulse circuit, that routes said pulse and said drive signal to said first and second switches based on said control signal.
Claim 20
Dependent Claim
94 words
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller comprising: a regulation circuit that provides a drive signal; a comparison circuit that compares input and output voltages of said power converter and generates a control signal based thereon; a pulse circuit, coupled to said regulation circuit, that generates a pulse based on said drive signal; and a switching circuit, coupled to said regulation circuit and said pulse circuit, that routes said pulse and said drive signal to said first and second switches based on said control signal.
Claim 21
Dependent Claim
17 words
The switching controller as recited in claim 16 wherein said regulation circuit is a pulse-width-modulation (PWM) controller.
Claim 22
Dependent Claim
16 words
The switching controller as recited in claim 16 wherein said pulse circuit is a monostable multivibrator.
Claim 23
Dependent Claim
22 words
The switching controller as recited in claim 16 wherein said pulse circuit is triggered by a rising edge of said drive signal.
Claim 24
Dependent Claim
22 words
The switching controller as recited in claim 16 wherein said pulse circuit is triggered by a trailing edge of said drive signal.
Claim 25
Dependent Claim
18 words
The switching controller as recited in claim 16 wherein said first and second switches are turned ON simultaneously.
Claim 26
Dependent Claim
18 words
The switching controller as recited in claim 16 wherein said first and second switches are turned ON sequentially.
Claim 27
Dependent Claim
74 words
For use in a buck+boost DC/DC power converter having first and second switches, a method for controlling the switching of said first and second switches, comprising: providing a drive signal; comparing input and output voltages of said power converter and generating a control signal based thereon; generating a pulse in response to said drive signal; and routing said pulse and said drive signal to said first and second switches based on said control signal.
Claim 28
Dependent Claim
74 words
For use in a buck+boost DC/DC power converter having first and second switches, a method for controlling the switching of said first and second switches, comprising: providing a drive signal; comparing input and output voltages of said power converter and generating a control signal based thereon; generating a pulse in response to said drive signal; and routing said pulse and said drive signal to said first and second switches based on said control signal.
Claim 29
Dependent Claim
20 words
The method as recited in claim 23 wherein said providing said drive signal comprises providing a pulse-width-modulated (PWM) drive signal.
Claim 30
Dependent Claim
20 words
The method as recited in claim 23 wherein said generating said pulse comprises generating said pulse with a monostable multivibrator.
Claim 31
Dependent Claim
25 words
The method as recited in claim 23 wherein said generating said pulse comprises generating said pulse based on a rising edge of said drive signal.
Claim 32
Dependent Claim
25 words
The method as recited in claim 23 wherein said generating said pulse comprises generating said pulse based on a trailing edge of said drive signal.
Claim 33
Dependent Claim
25 words
The method as recited in claim 23 wherein said routing said pulse and said drive signal comprises turning said first and second switches ON simultaneously.
Claim 34
Dependent Claim
25 words
The method as recited in claim 23 wherein said routing said pulse and said drive signal comprises turning said first and second switches ON sequentially.
Claim 35
Dependent Claim
138 words
A buck+boost DC/DC power converter, comprising: first and second switches, said first switch coupled in series to an input voltage source; first and second diodes coupled to said first and second switches; an inductor and an output capacitor coupled to said first and second diodes; a regulation circuit that senses an output voltage of said power converter and generates a drive signal in response thereto; a comparison circuit that compares an input voltage of said power converter to said output voltage and generates a control signal based thereon; a pulse circuit, coupled to said regulation circuit, that generates a pulse in response to said drive signal; and a switching circuit, coupled to said regulation circuit and said pulse circuit, that routes said pulse and said drive signal to said first and second switches based on said control signal.
Claim 36
Dependent Claim
138 words
A buck+boost DC/DC power converter, comprising: first and second switches, said first switch coupled in series to an input voltage source; first and second diodes coupled to said first and second switches; an inductor and an output capacitor coupled to said first and second diodes; a regulation circuit that senses an output voltage of said power converter and generates a drive signal in response thereto; a comparison circuit that compares an input voltage of said power converter to said output voltage and generates a control signal based thereon; a pulse circuit, coupled to said regulation circuit, that generates a pulse in response to said drive signal; and a switching circuit, coupled to said regulation circuit and said pulse circuit, that routes said pulse and said drive signal to said first and second switches based on said control signal.
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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) | 2003-03-14 | 2003-09-13 | 2004-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-14 | 2007-09-13 | 2008-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-14 | 2011-09-13 | 2012-03-14 | $7700.00 | Window Closed / Lapsed |