Part RB125, RB126

Description

REGULATED DC TO DC POWER BOOSTER FAA TSO-C71 The RB Series is a pulse width-modulated DC to DC converter that provides regulated +28 VDC up to 5.0 amperes The converter transforms an unregulated input from a 12V battery to a regulated +28 VDC output in a bootstrap mode. The Model RB Series is primarily intended for use in an aircraft with 12 VDC battery system to operate 28 VDC equipment (especially during periods when the battery is not charged). Features: State of the art design for regulation and positive logic for output overvoltage protection. Output is adjustable to 28 ± 2 VDC via an internal trim pot. Designed to meet various applicable portions MIL-STD 704 notice 3, MIL-STD-202 and MIL-T-5422F class 1A. The Model RB Series is serviceable, small and lightweight (110 watts per pound and 5.8 watts per cubic inch for the RB-126) Specifications Input Voltage RB-125:  11-16 VDC RB-126:  13.5-16 VDC Input Current RB-125:  14-11 ADC RB-126:  12-11 ADC Output Voltage RB-125:  28 VDC RB-126:  28 VDC Output Current RB-125:  5.0 AMPS RB-126:  6.0 AMPS Efficiency @Full Load RB-125:  87% RB-126:  90% Output Ripple 50 mVp-p plus input ripple. Regulation 2% for line, 2% load and 2% temperature. Refer to graph of input vs. output voltage. Load Transient Response 2V max. overshoot for 40 mSec typ. from FL to NL. 4V max. undershoot for10 mSec. typ.from NL to FL. Protection (Overload) Output voltage collapses to input DC voltage when load exceeds