RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE

• US 20160254702A1
• Filed: 10/31/2013
• Published: 09/01/2016
• Est. Priority Date: 10/31/2013
• Status: Active Grant

• Current Assignee: Mitsubshi Electric Engineering Company Limited (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubshi Electric Engineering Company Limited (Mitsubishi Electric Corporation)
• Inventors: AKUZAWA, Yoshiyuki, SAKAI, Kiyohide, EZOE, Toshihiro, ITO, Yuki
• Granted Patent: US 9,871,416 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02M 7/48 using discharge tubes with control electrode or semiconductor devices with control electrode
• CPC Class Codes: H02M 7/4815 Resonant converters H02M7/4811 and H02M7/4826 take precedence
• CPC Class Codes: H02M 7/4818 with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

A resonant type high frequency power supply device provided with a power semiconductor element that performs a switching operation at a high frequency exceeding 2 MHz, the resonant type high frequency power supply device including a variable inductor that makes an adjustment to the amplitude of a device output voltage.

Claims

1. A resonant type high frequency power supply device provided with a power semiconductor element that performs a switching operation at a high frequency exceeding 2 MHz, said resonant type high frequency power supply device comprising a variable inductor that makes an adjustment to an amplitude of a device output voltage.

2. The resonant type high frequency power supply device according to claim 1, wherein said power semiconductor element is an FET (Field Effect Transistor) other than an FET for RF (Radio Frequency).

3. The resonant type high frequency power supply device according to claim 1, wherein said power semiconductor element has a push-pull configuration or a single configuration.

4. The resonant type high frequency power supply device according to claim 1, wherein said resonant type high frequency power supply device includes a resonance circuit element that matches a resonance condition to that of a transmission antenna for power transmission according to magnetic resonance and that is comprised of a capacitor and an inductor.

5. The resonant type high frequency power supply device according to claim 1, wherein said resonant type high frequency power supply device includes a resonance circuit element that matches a resonance condition to that of a transmission antenna for power transmission according to electric resonance and that is comprised of a capacitor and an inductor.

6. The resonant type high frequency power supply device according to claim 1, wherein said resonant type high frequency power supply device includes a resonance circuit element that matches a resonance condition to that of a transmission antenna for power transmission according to electromagnetic induction and that is comprised of a capacitor and an inductor.

7. The resonant type high frequency power supply device according to claim 4, wherein said resonance circuit element causes the resonance condition to be variable.

8. The resonant type high frequency power supply device according to claim 5, wherein said resonance circuit element causes the resonance condition to be variable.

9. The resonant type high frequency power supply device according to claim 6, wherein said resonance circuit element causes the resonance condition to be variable.

10. The resonant type high frequency power supply device according to claim 4, wherein said resonant type high frequency power supply device includes a variable resonance condition circuit that causes the resonance condition of said resonance circuit element to be variable.

11. The resonant type high frequency power supply device according to claim 5, wherein said resonant type high frequency power supply device includes a variable resonance condition circuit that causes the resonance condition of said resonance circuit element to be variable.

12. The resonant type high frequency power supply device according to claim 6, wherein said resonant type high frequency power supply device includes a variable resonance condition circuit that causes the resonance condition of said resonance circuit element to be variable.