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A limiter control circuit and method

A technology for controlling circuits and circuits, applied in circuit devices, battery circuit devices, control/regulation systems, etc., can solve problems such as unstable operation of driven resonant rings, and achieve the effect of solving unstable operations

Active Publication Date: 2019-04-09
ZONECHARGE (SHENZHEN) WIRELESS POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a limiter control circuit and method to solve the problem of unstable operation of the driven resonant ring

Method used

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  • A limiter control circuit and method
  • A limiter control circuit and method
  • A limiter control circuit and method

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] The present invention provides a limiter control circuit, the circuit comprising:

[0036] Resonant coil, resonant capacitor and voltage-controlled switch;

[0037] The resonant coil is connected in series with the resonant capacitor; the two switch ends of the voltage-controlled switch are respectively connected to the two terminals of the resonant capacitor.

[0038] refer to figure 1 and figure 2 , figure 1 and figure 2 The connection relation...

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Abstract

The invention provides an amplitude limit control circuit and method. The circuit comprises a resonant coil, a resonant capacitor and a voltage controlled switch; the resonant coil is connected with the resonant capacitor in series; and two switching ends of the voltage controlled switch are connected with two end points of the resonant capacitor respectively. When a stable voltage needs to be provided, the voltage controlled switch is switched on, and the resonant capacitor is shorted. The resonant state of an original circuit is changed, stable voltage or current can be provided, and the problem that a driven resonant ring is instable in work is solved.

Description

technical field [0001] The present invention relates to the field of wireless power supply, and more specifically, relates to a limiter control circuit and method. Background technique [0002] The driven resonant ring has the dual characteristics of receiving energy and transmitting energy. In the wireless power supply terminal, the driven resonant ring is often used as a receiving resonant ring to supply power to terminal appliances. [0003] Since the driven resonant ring works in a resonant state, the voltage and current amplitude in the resonant ring is large and unstable. If the power is directly supplied to the terminal electrical appliances, huge current and voltage fluctuations will be generated, which will have a serious impact on the terminal electrical appliances. , and even burn electrical appliances. Therefore, there is an urgent need for a circuit that controls the voltage or current amplitude of the driven resonant ring to ensure stable operation of the driv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02M3/156
CPCH02J7/025H02M3/156Y02B70/10
Inventor 徐宝华朱斯忠何智
Owner ZONECHARGE (SHENZHEN) WIRELESS POWER TECH CO LTD
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