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CN-121996010-A - Voltage regulating circuit, chip and electronic equipment

CN121996010ACN 121996010 ACN121996010 ACN 121996010ACN-121996010-A

Abstract

The voltage regulating circuit comprises a power amplifying module, a power supply input end of the power amplifying module is used for being externally connected with a first power supply, the power amplifying module is used for amplifying an input first signal, the first signal comprises a cyclic prefix CP signal and an effective data signal, a first energy storage module, a first end of the first energy storage module is electrically connected with the power supply input end of the power amplifying module, a second end of the first energy storage module is electrically connected with a grounding end, the first energy storage module is used for providing stable power supply voltage for the power amplifying module, and the resonant voltage regulating module is electrically connected with the power supply input end of the power amplifying module and is used for obtaining target voltage and regulating the voltage at the power supply input end of the power amplifying module to the target voltage in a first time. For efficiency of the power amplifier.

Inventors

  • MAO YUNHE

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (10)

  1. 1. A voltage regulating circuit, comprising: The power amplification module is used for amplifying an input first signal, wherein the first signal comprises a Cyclic Prefix (CP) signal and an effective data signal; The power amplifier comprises a power amplifying module, a first energy storage module, a second energy storage module, a first power supply module, a second power supply module and a first power supply module, wherein the first end of the first energy storage module is electrically connected with the power input end of the power amplifying module, and the second end of the first energy storage module is electrically connected with the ground end; The power amplification device comprises a power amplification module, a resonance voltage regulating module, a power amplification module and a control module, wherein the power amplification module is used for amplifying a current CP signal in the current input first signal, the resonance voltage regulating module is electrically connected with a power input end of the power amplification module and is used for obtaining a target voltage, the voltage at the power input end of the power amplification module is regulated to the target voltage within a first time, the target voltage is a voltage related to an envelope of an effective data signal of the current input first signal, and the first time is at least part of time when the power amplification module amplifies the CP signal in the current input first signal.
  2. 2. The circuit of claim 1, wherein the resonant voltage regulation module comprises a resonant sub-module and a switching sub-module; The resonance submodule is electrically connected with the first end and the grounding end of the switch submodule respectively, and the second end of the switch submodule is electrically connected with the power input end of the power amplifying module.
  3. 3. The circuit of claim 2, further comprising a first voltage conversion module; The power amplification device comprises a power amplification module, a first voltage conversion module, a second voltage conversion module, a resonant submodule, a first power supply signal generation module and a second power supply module, wherein the output end of the first voltage conversion module is electrically connected with the resonant submodule, the first voltage conversion module is used for converting a first power supply signal received by the input end into a second power supply signal in a second time, the second power supply signal is transmitted to the resonant submodule to store energy for the resonant submodule, so that the resonant submodule regulates the power supply voltage of the power amplification module to a target voltage in the first time, the second time is earlier than the first time, the second time is at least part of the time for amplifying an effective data signal in a first signal input last time by the power amplification module, and the second power supply signal is related to the target voltage.
  4. 4. The circuit of claim 3, wherein the input terminal of the first voltage conversion module is configured to be externally connected to a second power source; The first voltage conversion module is specifically configured to convert a first power signal output by the second power supply into the second power signal.
  5. 5. A circuit according to claim 3, wherein the input of the first voltage conversion module is electrically connected to the power supply input of the power amplification module; The first voltage conversion module is specifically configured to convert an electrical signal at a power input end of the power amplification module into the second power signal by using the electrical signal as the first power signal.
  6. 6. The circuit of any one of claims 3-5, wherein the control end of the first voltage conversion module is configured to be externally connected to a first output end of the upper computer, and the control end of the switch sub-module is configured to be externally connected to a second output end of the upper computer; The first voltage conversion module is used for receiving a first control signal sent by the upper computer in a second time, converting a first power supply signal received by the input end into a second power supply signal based on the first control signal, and transmitting the second power supply signal to the harmonic oscillator module to store energy for the harmonic oscillator module; The switch sub-module is used for receiving a third control signal sent by the upper computer in the second time, disconnecting a branch between the resonant sub-module and the power input end of the power amplification module based on the third control signal, receiving a fourth control signal sent by the upper computer in the first time, and switching on the branch between the resonant sub-module and the power input end of the power amplification module based on the fourth control signal.
  7. 7. The circuit of any of claims 3-6, wherein the resonant sub-module comprises a first capacitance and inductance; The first end of the first capacitor is electrically connected with the first end of the inductor and the output end of the first voltage conversion module, the second end of the first capacitor is grounded, and the second end of the inductor is electrically connected with the first end of the switch sub-module.
  8. 8. The circuit of any of claims 1-7, wherein the first energy storage module comprises a second capacitor.
  9. 9. A chip comprising the voltage regulating circuit of any one of claims 1-8.
  10. 10. An electronic device comprising the voltage regulating circuit of any one of claims 1-8 or the chip of claim 9.

Description

Voltage regulating circuit, chip and electronic equipment Technical Field The present application relates to the field of electronic circuits, and in particular, to a voltage regulating circuit, a chip, and an electronic device. Background Envelope tracking is a technique by which the supply voltage (e.g., vcc) of a Power Amplifier (PA) in a transmit chain of a transmitter is controlled based on the RF signal envelope of a transmit signal amplified by the PA. The concept is to approximate or slightly compress the power amplifier and reduce the PA supply voltage when the instantaneous signal amplitude is low, thereby improving the efficiency of the power amplifier and its supply generation. Disclosure of Invention In view of the above, the present application provides a voltage adjusting circuit, a chip and an electronic device for improving the efficiency of a power amplifier. In a first aspect, an embodiment of the present application provides a voltage adjustment circuit, including: The power amplifier comprises a power amplifier module, a power amplifier module and a control module, wherein the power input end of the power amplifier module is used for being externally connected with a first power supply; The power amplifier comprises a power amplifying module, a first energy storage module, a second energy storage module, a first power supply module, a second power supply module and a second power supply module, wherein the first end of the first energy storage module is electrically connected with the power input end of the power amplifying module; The power amplification device comprises a power amplification module, a resonance voltage regulating module and a power amplification module, wherein the resonance voltage regulating module is electrically connected with a power input end of the power amplification module and is used for obtaining target voltage, the voltage at the power input end of the power amplification module is regulated to the target voltage within first time, the target voltage is voltage related to an envelope of an effective data signal of a first signal which is input currently, and the first time is at least part of time when the power amplification module amplifies a CP signal in the first signal which is input currently. In the embodiment of the application, the power supply voltage of the power amplification module can be adjusted to the target voltage within the time of amplifying the CP signal of the first signal by the power amplification module through the resonance voltage regulation module, namely the power supply voltage of the power amplifier is adjusted based on the envelope of the effective data signal in the first signal of the power amplifier, and the power amplification module can amplify the effective data signal in the first signal based on the target voltage, so that the power amplification efficiency of the power amplification module is improved. In addition, in the embodiment of the application, the resonance adjusting module can adjust the power supply voltage of the power amplifying module within the time of amplifying the CP signal of the first signal by the power amplifying module so as to adjust the power supply voltage of the power amplifying module to be the target voltage. And through setting up first energy storage module, can be in the in-process that power amplification module carries out the amplification processing to the effective data signal of first signal, can make power amplification module provide stable power, need not the electric signal size of adjusting first power output like this, make power amplification module's power supply voltage regulation and first power output electric signal size decoupling, the module of non-voltage regulation part has reduced to the bandwidth demand to the steady state efficiency of power has been promoted. In a possible implementation manner of the first aspect, the resonant voltage regulation module includes a harmonic oscillator module and a switch sub-module; the resonance submodule is electrically connected with the first end and the grounding end of the switch submodule respectively, and the second end of the switch submodule is electrically connected with the power input end of the power amplifying module. In the embodiment of the application, the switch submodule and the harmonic oscillator submodule are arranged in the resonance voltage regulating module, and the control of the switch submodule is used for realizing that the branch between the harmonic oscillator submodule and the power input end of the power amplifying module is conducted only in the first time, so that the harmonic oscillator submodule regulates the power supply voltage of the power amplifying module, and the control of the switch submodule at other times disconnects the branch between the harmonic oscillator submodule and the power input end of the power amplifying module, so that the regulation of the power supply voltage of th