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Control method of envelop tracking technology, control device of envelop tracking technology and electronic equipment

An electronic device and envelope tracking technology, applied in the field of envelope tracking, can solve the problems affecting the stability of power amplifiers and the unreliable operation of transmitters, etc., to achieve the effect of ensuring stable work

Active Publication Date: 2015-05-27
LENOVO (BEIJING) LTD
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Problems solved by technology

[0003] However, the applicant found that since the power amplifier is powered by a switching power supply, when the output voltage of the switching voltage changes rapidly or the load impedance of the power amplifier changes or the operating temperature changes, the stability of the power amplifier will be affected, resulting in The transmitter in the machine does not work reliably

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  • Control method of envelop tracking technology, control device of envelop tracking technology and electronic equipment
  • Control method of envelop tracking technology, control device of envelop tracking technology and electronic equipment
  • Control method of envelop tracking technology, control device of envelop tracking technology and electronic equipment

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[0061]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.

[0062] The present application provides a control method, device and electronic equipment of envelope tracking technology. After determining the proportional configuration parameters according to the obtained current operating frequency band and operating temperature of the electronic equipment, the parameters are configured according to the proportion and the switching power supply of the electronic equipment The current output voltage determines the proportion...

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Abstract

The application provides a control method of an envelop tracking technology, a control device of the envelop tracking technology and electronic equipment. According to the obtained current working frequency band and working temperature of the electronic equipment, a proportional configuration parameter is determined; then according to the proportional configuration parameter and a current output voltage of switching power of the electronic equipment, a proportion control voltage is determined; then, base on the proportion control voltage, an output impedance of a power amplifier of the electronic equipment is dynamically regulated, and an appropriate voltage-controlled matching network is determined, so that the steady operation of the power amplifier is ensured.

Description

technical field [0001] The present invention mainly relates to the technical field of envelope tracking in electronic equipment, and more specifically relates to a control method, device and electronic equipment of envelope tracking technology. Background technique [0002] Nowadays, in order to save the power consumption of electronic equipment such as mobile phones and notebooks, envelope tracking technology has been widely used in electronic equipment. In practical applications, the output voltage of the switching power supply of electronic equipment needs to track the change of the envelope of the radio frequency signal emitted by the transceiver in real time. In this process, in order to avoid distortion of the envelope signal, the bandwidth of the output voltage signal of the switching power supply is usually required It is 3 to 5 times the bandwidth of the radio frequency signal. In this regard, in the prior art, the capacity of the output decoupling capacitor of the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/20H03F1/56
Inventor 任翔蒋才林夏静改
Owner LENOVO (BEIJING) LTD