INDUCTION POWER SYSTEM

• US 20100097830A1
• Filed: 12/21/2007
• Published: 04/22/2010
• Est. Priority Date: 03/29/2007
• Status: Active Grant

• Current Assignee: Amidof Technology Co., Ltd.
• Original Assignee: Amidof Technology Co., Ltd.
• Inventors: Wang, Chweisen
• Granted Patent: US 8,094,467 B2
• Time in Patent Office: Days
• US Class Current: 363/126
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02M 3/33576 having at least one active switching element at the secondary side of an isolation transformer

Abstract

An induced power system for being connected with and driving loads (300) includes a primary circuit (100) and a secondary circuit (200). The primary circuit (100) is provided with a primary inductor (110) for generating current induced magnetic filed. The secondary circuit (200) is provided with an induce generation portion (210) and a power distribution portion (220). The induce generation portion (210) is provided with a first inductor (211) and a second inductor (212) connected in series with each other and adjacent with the primary inductor (110), for generating induced alter current. The power distribution portion (220) is provided with a first capacitor (221), a second capacitor (222) and a switching device (225), in which the first capacitor (221) is connected with the first inductor (211) in series to generate series resonance, thus to provide a control power supply. The second capacitor (222) is connected with the first, the second inductors (211, 212) and the first capacitor (221) in parallel to generate parallel resonance, thus to provide a load power supply. When the switching device (225) is on, the load power supply is provided to the loads (300).

Claims

1. An induction power system, configured to connect and drive a load, comprising:

a primary side circuit, comprising at least one main inductor configured to generate a current-induced magnetic field; and

a secondary side circuit, comprising;

an induction electrification unit, comprising a first inductor and a second inductor, wherein the first inductor and the second inductor are electrically connected in series, and the induction electrification unit is adjacent to the primary side circuit and is configured to generate an induced alternating current (AC); and

a power distribution unit, comprising;

a first capacitor, wherein the first capacitor and the first inductor are electrically connected in series, and the first capacitance value matches the first inductance value to generate a series resonance, thereby providing a control power; and

a second capacitor, wherein the second capacitor is electrically connected in parallel with the first capacitor, the first inductor, and the second inductor, and the second capacitance value matches the second inductance value to generate a parallel resonance, thereby providing a load power.

2. The induction power system according to claim 1, wherein the power distribution unit further comprises a switching device, the switching device is electrically connected to the second inductor in series, the power distribution unit provides the load power to the load when the switching device is turned on, and the power distribution unit stops providing the load power when the switching device is turned off.

3. The induction power system according to claim 2, wherein the secondary side circuit further comprises:

a transformer rectifier unit, disposed at the power distribution unit, wherein one side of the transformer rectifier unit forms a loop with the first capacitor and the first inductor, such that the control power is converted into a direct current (DC) control power;

an AC/DC converter, disposed at the power distribution unit, wherein the AC/DC converter is configured to accept the load power and converts the load power into a DC load power;

a second control unit, disposed at the power distribution unit and configured to accept the DC control power and to control and drive the AC/DC converter; and

a first control unit, electrically connected to the power distribution unit and the load, and configured to accept the DC control power and to control the turning-on and turning-off of the switching device selectively.

4. The induction power system according to claim 2, wherein the secondary side circuit further comprises a third inductor and a third capacitor, and the first capacitor, the first inductor, the third capacitor, and the third inductor are electrically connected in series to generate a series resonance, thereby providing a control power, and the second capacitor is electrically connected in parallel with the first capacitor, the first inductor, the third capacitor, the third inductor, and the second inductor to generate a parallel resonance, thereby providing a load power.