Microsemi DRF1300 1.7KW RF方案

Microsemi公司的DRF1300是推挽混合模块,包括有两个大功率栅极驱动器和两个功率MOSFET. DRF1300能使系统设计者增加灵活性,使系统有更高的性能和更低的成本,可构成500V30A 30MHz的RF系统,其输出功率达到千瓦到几千瓦,可应用在C/D/E类RF信号发生器,开关模式功率放大器,高压脉冲发生器以及声光调制器等.本文介绍了DRF1300的主要特性,方框图以及典型的应用电路.

The DRF1300 is a push-pull hybrid containing two high power gate drivers and two power MOSFETs. It was designed to provide the system designer increased flexibility, higher performance, and lowered cost over a non-integrated solution. This low parasitic  approach, coupled with the Schmitt trigger input, Kelvin signal ground, Anti-Ring function
Invert and Non-invert select pin provide improved stability and control in Kilowatt to Multi-Kilowatt, High Frequency ISM applications.

主要特性:
Switching Frequency: DC TO 30MHz
Inverting Non-Inverting Select
Low Pulse Width Distortion
Single Power Supply (Per Section)
1V CMOS Schmitt Trigger Input 1V Hysteresis
Switching Speed 3-4ns
BVds = 500V
Ids = 30A max. Per-section
Rds(on) ≤ .24 Ohm
PD = 550W Per-section
RoHS Compliant

典型应用:
Class C, D and E RF Generators
Switch Mode Power Amplifiers
HV Pulse Generators
Ultrasound Transducer Drivers
Acoustic Optical Modulators



图1.DRF1300电路框图



图2.DRF1300测试电路图