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Transformer, driving module and driving method

A technology of a driving module and a driving method, which is applied in the direction of transformers, variable transformers, parts of transformers/inductors, etc., can solve problems affecting output voltage and input voltage V_in, and achieve the effects of improving reliability and reducing noise

Inactive Publication Date: 2016-10-26
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the central terminal T_c is coupled to the supply voltage Vcc, the noise from the source (for supplying the supply voltage Vcc) will affect the input voltage V_in, thereby affecting the output voltage V_out

Method used

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  • Transformer, driving module and driving method
  • Transformer, driving module and driving method
  • Transformer, driving module and driving method

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Embodiment Construction

[0017] The following descriptions are preferred embodiments for implementing the present invention. The following examples are only used to illustrate the technical characteristics of the present invention, and are not intended to limit the scope of the present invention. Certain terms are used throughout the specification and claims that follow to refer to particular elements. It should be understood by those skilled in the art that manufacturers may use different terms to refer to the same element. The specification and claims do not use the difference in name as the way to distinguish components, but the difference in function of the components as the basis for the difference. The terms "element", "system" and "apparatus" used in the present invention may be a computer-related entity, where the computer may be hardware, software, or a combination of hardware and software. The terms "comprising" and "including" mentioned in the following description and claims are open ter...

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Abstract

A driving module comprising a transformer and at least one driver. The transformer comprises: a primary side, comprising a first input terminal, a second input terminal, and a center terminal coupled to a first predetermined voltage, wherein the primary side is center tapped at the center terminal; a secondary side. The driver is coupled to a second predetermined voltage, configured to receive at least one input signal, to provide a first input current flowing from the first input terminal to the center terminal, and to provide a second input current flowing from the second input terminal to the center terminal. The primary side generates an input voltage based on the first input current and the second input current, wherein the secondary side generates an output voltage based on the input voltage. The second predetermined voltage is higher than the first predetermined voltage.

Description

technical field [0001] The invention relates to a driving module and a driving method, more particularly, to a driving module and a driving method with low noise, high reliability and meeting different requirements. Background technique [0002] Usually, the driving module is used to provide a desired driving voltage. figure 1 is a circuit diagram illustrating a prior art drive module 100 . Such as figure 1 As shown, the driving module 100 includes a transformer (transformer) 101 and drivers (drivers) D_1 and D_2. The transformer 101 includes a primary side (primary side) S_p and a secondary side (secondary side) S_s. The primary side S_p comprises input terminals T_in1 , T_in2 and a central terminal T_c. The center terminal T_c is a center tap of the primary side S_p, and the center terminal T_c is coupled to the supply voltage Vcc. [0003] The drivers D_1 and D_2 are coupled to the ground voltage, which is lower than the supply voltage Vcc. In addition, the drivers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P13/00H01F29/00H01F27/28
CPCH01F27/2828H01F29/00H02P13/00H04L25/0266H04L25/028H02M7/53803H02M1/007H02M7/537
Inventor 侯钧豑
Owner MEDIATEK INC