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Transmitting circuit and transmitting signal intensity adjusting method thereof

A technology for transmitting circuits and signals, applied in electrical components, amplifiers with semiconductor devices/discharge tubes, advanced technologies, etc. Avoid damaging effects

Pending Publication Date: 2022-05-20
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the power amplifier receives a large-voltage input signal, the oxide layer in the transistor is easily broken down, causing damage to the power amplifier, and then invalidating the entire transmitting circuit

Method used

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  • Transmitting circuit and transmitting signal intensity adjusting method thereof
  • Transmitting circuit and transmitting signal intensity adjusting method thereof
  • Transmitting circuit and transmitting signal intensity adjusting method thereof

Examples

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Embodiment Construction

[0012] The embodiments are described in detail below in conjunction with the accompanying drawings, but the described specific embodiments are only used to explain the present case, and are not used to limit the present case, and the description of the structure and operation is not used to limit the order of its execution. Any structure recombined by components , the resulting devices with equivalent functions are all within the scope of the present disclosure.

[0013] The terms (terms) used throughout the specification and patent claims generally have the ordinary meaning of each term in the field, in the disclosed content and in the special content, unless otherwise specified.

[0014] In addition, as used herein, "coupling" or "connection" may refer to two or more components that are in direct physical or electrical contact with each other, or that are in indirect physical or electrical contact with each other, and may also refer to two or more components that are in physi...

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PUM

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Abstract

A transmitting circuit comprises a power amplifier, a power amplifier pre-stage circuit and a signal strength adjusting circuit. The power amplifier is used for amplifying an input signal to output an output signal. The power amplifier pre-stage circuit is used for outputting the input signal. The signal strength adjusting circuit comprises a conversion circuit, a judgment circuit, a processing circuit and a storage device, the judgment circuit is coupled to the input end of the power amplifier and the processing circuit, the conversion circuit is used for converting the voltage of the output signal into an operation value, and the storage device is used for storing the operation value. The processing circuit is used for performing operation according to the operation value and a target index value stored in the storage device to obtain a difference value, and adjusting the input signal according to the difference value, so that the power of the output signal is maintained at a target power value.

Description

technical field [0001] The present disclosure relates to a transmitting circuit and a method for adjusting the intensity of the transmitting signal thereof, in particular to a transmitting circuit and a method for adjusting the intensity of the transmitting signal which can preferentially avoid damage to the power amplifier. Background technique [0002] In high-end processes, transistors (eg, metal-oxide-semiconductor (MOS)) in power amplifiers in traditional transmitter circuits have thinner oxide layers. Therefore, when the power amplifier receives a large-voltage input signal, the oxide layer in the transistor is easily broken down, causing damage to the power amplifier, and then invalidating the entire transmitting circuit. Contents of the invention [0003] An embodiment of the disclosure is a transmitting circuit. The transmitting circuit includes a power amplifier, a front-stage circuit of the power amplifier and a signal strength adjustment circuit. The power am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/217H03G3/20
CPCH03F3/217H03G3/20Y02D30/70
Inventor 陈邦萌黄建融吕宜桦
Owner REALTEK SEMICON CORP