Invention Grant
- Patent Title: Limiting driver for switch-mode power amplifier
- Patent Title (中): 开关模式功率放大器限制驱动器
-
Application No.: US14447452Application Date: 2014-07-30
-
Publication No.: US09397621B2Publication Date: 2016-07-19
- Inventor: Earl W McCune, Jr.
- Applicant: Eridan Communications, Inc.
- Applicant Address: US CA San Francisco
- Assignee: Eridan Communications, Inc.
- Current Assignee: Eridan Communications, Inc.
- Current Assignee Address: US CA San Francisco
- Agency: Patent Law Professionals, P.C.
- Agent William E. Winters
- Main IPC: H03F3/217
- IPC: H03F3/217 ; H03F3/193 ; H03F1/30 ; H03F1/32 ; H03F3/45 ; H03F1/02

Abstract:
A switch-mode RFPA driver includes first and second field-effect transistors (FETs) arranged in a totem-pole-like configuration. The switch-mode RFPA driver operates to generate a switch-mode RFPA drive signal having a generally square-wave-like waveform from an input RF signal having a generally sinusoidal-like waveform. To maximize high-frequency operation and avoid distorting the switch-mode RFPA drive signal, the switch-mode RFPA driver is designed so that its output can be connected directly to the input of the switch-mode RFPA to be driven, i.e., without using or requiring the use of an AC coupling capacitor. The first and second FETs of the switch-mode RFPA driver are designed and configured to limit and control the upper and lower magnitude levels of the switch-mode RFPA drive signal to levels suitable for switching the switch-mode RFPA directly, obviating any need for DC biasing at the input of the switch-mode RFPA.
Public/Granted literature
- US20160036399A1 LIMITING DRIVER FOR SWITCH-MODE POWER AMPLIFIER Public/Granted day:2016-02-04
Information query
IPC分类: