Power amplification device

Abstract

The invention discloses a power amplification device, which comprises a user instruction receiving module, a processor, a power adjustment power supply and a power amplification module. A user can send a first user instruction to the user instruction receiving module according to power required by a current load, so that the processor outputs a control signal based on the first user instruction, the adjustable voltage output by the power adjustment power supply is adjusted, the power amplification module can realize power amplification based on the adjustable voltage and the PWM signal, and the adjustable voltage output by the power adjustment power supply can be changed, so that the requirements of a load on different powers are met.

Description

technical field [0001] The invention relates to the field of electric energy conversion, in particular to a power amplification device. Background technique [0002] A power amplifying device is a device designed to output larger power. When the rated output voltage and power of the signal generator cannot drive the load, a power amplifier is connected to the output of the signal generator to amplify the output voltage and power of the signal generator. Generally, the power amplification device can directly drive the load, has a strong load capacity, and can output stable power, which plays a vital role in the entire test experiment and actual product application. [0003] However, the power amplifying device in the prior art cannot adjust the power of its output PWM (Pulse Width Modulation, pulse width modulation) signal, for example figure 1 as shown, figure 1 It is a structural schematic diagram of a power amplification device in the prior art. The power amplification ...

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Problems solved by technology

[0003] However, the power amplifying device in the prior art cannot adjust the power of its output PWM (Pulse Width Modulation, pulse width modulation) signal, for example figure 1 as shown, figure 1 It is a structural schematic diagram of a power amplification device in the prior art. The power amplification device includes a power amplification module and a power adjustment power supply VCC_20V. The input signal VIN of the power amplification module is the PWM signal output by the signal generator, and is pulled by the voltage of VCC_12V. After rising, the switch tube Q2 is driven to turn on or off, and then cooperate with the power adjustment power supply VCC_20V to realize power amplification, but the power adjustment power supply VCC_20V is fixed, so the amplified power is also fixed, so it cannot meet loads with different power requirements

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