Resonance-type power converter circuit provided with resonance circuit including lc resonance circuit and switching element
US-2024339866-A1 · Oct 10, 2024 · US
Inverter circuit and wireless power transfer circuit
US2025309689A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025309689-A1 |
| Application number | US-202318865296-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 10, 2023 |
| Priority date | May 13, 2022 |
| Publication date | Oct 2, 2025 |
| Grant date | — |
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- Title
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Abstract
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An inverter circuit includes an input inductor connected in series between a direct-current power supply and a switching element partially constituting the inverter circuit, a high-frequency resonant circuit that includes a high-frequency resonant capacitor and a high-frequency resonant inductor and is connected in parallel to a switching element, and a switch having one end connected to the direct-current power supply and the other end connected to the high-frequency resonant capacitor and the high-frequency resonant inductor. The input inductor is connected in parallel to the high-frequency resonant inductor and the switch.
First claim
Opening claim text (preview).
1 . An inverter circuit for connection to a direct-current power supply and converts direct-current power outputted from the direct-current power supply into alternating-current power, comprising: an input inductor configured for connection in series between the direct-current power supply and a switching circuit partially constituting the inverter circuit; a resonant circuit configured for connection in parallel to the direct-current power supply together with the switching circuit, the resonant circuit including a resonant capacitor and a resonant inductor; and a switch having a first end configured for connection to the direct-current power supply and a second end configured for connection to the resonant capacitor and the resonant inductor, wherein the resonant inductor and the input inductor are connected in parallel to the switch. 2 . The inverter circuit according to claim 1 , wherein an inductance of the resonant inductor is smaller than an inductance of the input inductor, and a constant of each element constituting the inverter circuit is optimized such that constant current supply and constant voltage supply are possible without depending on a fluctuation in a power load supplied with the alternating-current power output from the inverter circuit. 3 . A wireless power transfer circuit comprising: the inverter circuit according to claim 2 ; and a power transfer circuit configured to transfer power in a disconnected state using magnetic field resonance or electric field resonance.
Assignees
Inventors
Classifications
Resonant converters (H02M7/4811 and H02M7/4826 take precedence) · CPC title
Charging or discharging characterised by the power electronics converter · CPC title
- H02J50/12Primary
of the resonant type · CPC title
using discharge tubes with control electrode or semiconductor devices with control electrode · CPC title
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- What does patent US2025309689A1 cover?
- An inverter circuit includes an input inductor connected in series between a direct-current power supply and a switching element partially constituting the inverter circuit, a high-frequency resonant circuit that includes a high-frequency resonant capacitor and a high-frequency resonant inductor and is connected in parallel to a switching element, and a switch having one end connected to the di…
- Who is the assignee on this patent?
- Univ Chiba Nat Univ Corp
- What technology area does this patent fall under?
- Primary CPC classification H02J50/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 02 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).