HIGH VOLTAGE POWER TRANSISTORS

Brand	Owner	Address	Description
PTC	ALLEN-BRADLEY COMPANY	136 WEST GREENFIELD AVENUE MILWAUKEE WI	High Voltage Power Transistors, Transistors, Rectifiers, Power Modules and Discrete Diodes;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Providing a high frequency power amplifier circuit and a radio communication system which can control output power by a power voltage, produce sufficient output power in high regions of demanded output power and improve power efficiency in low regions of demanded output power. In a high frequency power amplifier circuit (RF power module) which comprises two or more cascaded FETs for amplification and controls output power by controlling power voltages of the FETs for amplification to gate terminals of which bias voltages of a predetermined level are applied, different transistors for power voltage control are provided for a last-stage FET for amplification and preceding-stage FETs for amplification. The transistors for power voltage control generate and apply the power voltage so that the preceding-stage FETs for amplification saturate when a demanded output level is relatively low.