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PowerBox 40/16
Expert
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Design and function
With our PowerBox 40/16 battery-pack cross-over we are proud to place a power supply of the latest generation at your service. In addition to the possibility of supplying the receiver(s) and associated control units from two sources of current, this battery-pack cross-over also offers the option of dispersing certain of the receiver's channels. The PowerBox 40/16 has four dispersed control channels each of which is fitted with a two-way pulse amplifier. This pulse amplification is necessary in order to allow you to connect up to four servos simultaneously and in parallel to one control channel, as often required by large model aircraft. In order to provide adequate pulses for these servos, which are generally fed via long conductor wires in the case of such models, it is necessary to raise the control signal coming from the receiver to a higher level. This task is also performed by our pulse amplifier. This permits servo wires up to four metres in length to be laid without problems. These long servo cables are, of course, suppressed at the PowerBox, no additional ferrite rings
are required for servos plugged into the PowerBox. The dispersal of certain control channels away from the receiver may be a great advantage for various applications.
- The channels which are generally
under permanent control during a flight, i.e. ailerons,
elevator and vertical rudder, are dispersed away from the
receiver. This gives the receiver, as far as current is
concerned, more tranquillity. It operates more reliably and
is not so prone to interference of various kinds.
- The channels which have to be
connected up to powerful, rapid-acting servos or to several
servos are dispersed. This is the only way to ensure that
these servos can cover their high current requirements and
can produce the performance as detailed in the technical
specifications. This applies, in particular, to digitally
activated servos, for these are the ones which draw a great
deal of energy from the overall power supply. So-called
jumbo or power servos really have no right to be connected
direct to the receiver. They should thus be dispersed away
from the receiver: simply connect them to the PowerBox!
- Power supply to the receiver in the
case of the PowerBox 40/16 is via four cables of double
cross-section and via four plugs on the receiver, which also
means quadruple security by comparison with a single switch
cable. In order to achieve a certain degree of decoupling of
masses between receiver, cross-over and servos, all leads to
the receiver are looped several times through ferrite rings.
This ensures that the operation and range of every receiver,
no matter who the manufacturer may be, cannot be restricted
by our systems.
- Electronic systems such as the
control electronics of turbines, electronic flashguns, smoke
installations or even electronic regulators etc. should, in
our experience, not be connected direct to the receiver.
This is particularly inadvisable if the original
manufacturer is not clearly identifiable. Accelerator and
choke servos fitted up front on the motor frame and the
control leads of which pass close to the ignition battery
pack really have no business being connected direct to the
receiver. In this case, too, it is better to disperse the
relevant servo from the receiver and plug it into the Power
Box. Every channel input or output on the PowerBox 40/16 is
suppressed, so the operation of the receiver is not impaired
by other systems.
- Every slot on the PowerBox 40/16 can withstand loads of up to 30 A for short periods. Why is this so important? Because this is the only way to guarantee that a fault in or at a servo does not immediately lead to the total failure of the receiver equipment. So if a servo motor, a servo electronics component or a servo lead should fail, possibly even as the result of a short, up to 30 A are required for a brief period (15 to 30 secs.) for this servo. If this performance is not available, the corresponding servo simply burns out without affecting the rest of the receiver equipment. Even servos on one rudder with several connections but provided with their own slot on the PowerBox 40/16 will not be affected in such cases. This is precisely the reason why the PowerBox 40/16 offers more than just the security of two-battery pack systems. It provides a security package better than any available on the market until now!
Nor should we forget to mention the two independent voltage regulators. These two arrays of LEDs enable you to reliably check both battery packs and both power-supply cables. Two external LEDs, which can be plugged in as options on one side of the fuselage, for instance, serve as additional monitoring devices giving timely warning of a possible drop in the voltage of one or both of the battery packs during a flight. In order to provide all these functions, we have developed special Power Switches. These themselves contain a security package designed to make flying model aircraft a safer bet. Manufactured as a Switch Set for all our cross-overs, they are provided with the corresponding connections and include a charging cable for the charging socket. The Switch Set is available in a black or grey housing.
 back
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