一种用于稳定无线电能传输谐振变换器ZVS频率的直流电压控制可变电容器

Varactors are often used in phase-locked-loop (PLL) circuits for dynamic frequency control. However, the voltage and current ratings of varactors are too low to be used in most power electronic circuits. This paper proposes a transistor-controlled variable capacitor (TCVC), which functions similar to varactors in that its equivalent capacitance can be controlled by a dc voltage. However, TCVC can ...