Variable-frequency electric charge pump unit, chip, and communication terminal

A variable-frequency electric charge pump unit, comprising a variable-frequency signal generator, an electric charge pump circuit, and a voltage detector that are sequentially connected, wherein

• the variable-frequency sequence generator is implemented by a multipoint frequency selectable oscillator circuit;
• the variable-frequency signal generator outputs a clock signal to the electric charge pump circuit, the electric charge pump circuit generates an output voltage based on the clock signal, and the output voltage on one hand drives a load and on the other hand is connected to the voltage detector;
• and
• an output end of the voltage detector is connected to the variable-frequency signal generator;
• when the load of the electric charge pump unit increases, the working frequency of the variable-frequency signal generator increases correspondingly;
• and when the load of the electric charge pump unit decreases, the working frequency of the variable-frequency signal generator decreases correspondingly.