Switching power converters controlled with control signals having variable on-times
US-10498257-B2 · Dec 3, 2019 · US
Switching power supply
US2020358366A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020358366-A1 |
| Application number | US-201816764797-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 23, 2018 |
| Priority date | Dec 7, 2017 |
| Publication date | Nov 12, 2020 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A switching power supply includes an input terminal and an output terminal, a voltage converter including a first switching circuit configured to serve as a trigger for inputting a voltage from the input terminal and a second switching circuit configured to serve as a trigger for outputting, after the input voltage is converted, the converted voltage from the output terminal 0, a control circuit configured to output a control signal for selectively sequentially driving the first switching circuit and the second switching circuit, and a delay circuit configured to delay, based on the control signal for driving any one of the first switching circuit and the second switching circuit, a subsequent driving timing of the other switching circuit that is not driven to provide a dead time when both the first switching circuit and the second switching circuit are turned off.
First claim
Opening claim text (preview).
1 . A switching power supply comprising: an input terminal and an output terminal; a voltage converter including a first switching circuit configured to serve as a trigger for inputting an input voltage from the input terminal and a second switching circuit configured to serve as a trigger for outputting, after the input voltage is converted, the converted voltage from the output terminal; a control circuit configured to output a control signal for selectively sequentially driving the first switching circuit and the second switching circuit; and a delay circuit configured to delay, based on the control signal for driving any a driven switching circuit that is one of the first switching circuit and or the second switching circuit, a subsequent driving timing of the other switching circuit of the first switching circuit or the second switching circuit that is not driven to provide a dead time when both the first switching circuit and the second switching circuit are turned off. 2 . The switching power supply according to claim 1 , wherein the delay circuit includes a first resistor connected to a signal output terminal for outputting the control signal to the driven switching circuit in the control circuit, a second resistor connected in series to the first resistor, a capacitance connected in parallel to the second resistor, and a switching element having a gate connected between the first resistor and the second resistor, and a drain connected to the other switching circuit that is not driven.
Assignees
Inventors
Classifications
- H02M7/21Primary
using devices of a triode or transistor type requiring continuous application of a control signal · CPC title
- H02M1/38Primary
Means for preventing simultaneous conduction of switches · CPC title
having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer · CPC title
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Frequently asked questions
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- What does patent US2020358366A1 cover?
- A switching power supply includes an input terminal and an output terminal, a voltage converter including a first switching circuit configured to serve as a trigger for inputting a voltage from the input terminal and a second switching circuit configured to serve as a trigger for outputting, after the input voltage is converted, the converted voltage from the output terminal 0, a control circui…
- Who is the assignee on this patent?
- Fdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H02M7/21. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 12 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).