According to the different types of power amplifier, radio frequency power supply can be divided into transistor radio frequency power supply (also known as solid state RF power supply) and RF power supply.
The RF power transistor (solid state RF power), at the end of 90s began to be introduced China, due to the RF power transistor (solid state RF power) relative to the electronic tube power supply has the advantages of small volume, long service life, power control precision, the output power is more stable, high frequency accuracy, the advantages of boot without preheating etc.. In the field of small power (less than 2000W), is gradually replacing the tube RF power supply.
RF power supply, became popular in the mid 80s, due to the RF power transistor in the resistance in Bobbi is superior to the later popular RF power electronic tube (solid state RF power), so in high power (more than 2000W) applications, is still widely used.