DPSI RV Mini Family Operating Instructions Version 1.0
Page 15 of 54
Even fast tail rotor servos or gyro systems which only "allow for" small
voltages can be supplied by the receiver with 5.2V. Additionally, the
receiver supply is protected against voltage peaks. This means: all
disturbing pulses induced into the supply voltage are limited to safe
values.
5.4. Servo Current Distribution
Furthermore, a DPSI RV Mini provides current distribution for high
power servos, in order not to connect these to the sensitive receiver.
All servos directly connected to the DPSI RV Mini are supplied with full
power and each individual servo gets its maximum possible current.
This can be recognized by a significantly better servo actuating force.
5.5. APP (Advanced Push Pull Servo Pulse Amplification)
In order to provide each servo optimally conditioned control signals
from the receiver, these signals are electronically amplified. This is
especially important if receivers operate on low voltage (e.g. 2.7V);
their pulse amplitude is too low for some servos.
Each individual servo output of the DPSI RV Mini has its own pulse
amplifier and specific HF suppression. The amplifiers recognize even
very weak servo signals from the receiver and elevate the level up to
an exactly defined value. They are short-circuiting proof and are
supplied with their own voltage regulator for safety reasons (i.e. not
with the regular servo voltage). Therefore, the signals always carry a
defined and constant level over the total operating range.
An additional advantage is the current-saving APP-Technology. The
amplifiers consist of special output stages which actively control the
low- as well as the high-phase of the servo signal. In connection with
highly effective filters which practically eliminate induced disturbances
caused by long servo cables completely, best pulse quality and highest
possible safety is guarantied.
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