Development of a High-Voltage Linear Actuator Amplifier System
Abstract
A lightweight, compact, 61-channel linear switching amplifier system has been developed for aircraft use. Each channel accepts input in the + or - 10 V range and outputs + or - 1500 V into a capacitive load of 0.05 microfarads. The design employs a system of incremental resonant charging of the load, controlled by a system clock. Internal losses are minimized to hold size and weight to a minimum. The amplifiers as designed are flat in frequency response dc to 400 Hz without slew rate limitation. Linearity is better than 1% full scale. The system is intended to drive piezoelectric actuators of an adaptive optics mirror system. An overall design of the system with computer modeling was completed and a two-channel breadboard was constructed, debugged, and tested. The tests showed that system design requirements were met with only minor deficiencies in maximum voltage and slew rate, correctable with nominal development efforts.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA074266
Entities
People
- D. Smart