User manual
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Superior Broadcast
ATVCA Amplifier User Manual
Superior Boadcast ATVCA Amplier
ATVCA
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User Manual
Rev. 1.0 - 22/11/10
7.2.9 Current Meter Card
This card implements two functions. The rst is the reading of currents that are
absorbed by the RF power ampliers, driver and pre-driver. The second function
is to provide electric protection through fast intervention fuses. The measurements
taken are delivered to the interface card.
7.2.10 Surge Protection
This card is the rst stage of power supply. It is directly connected to the electric
system and protects the afterwards card. Within the devices are inserted to protect
the equipment from surges.
7.2.11 PFC Card
The PFC is responsible of aligning between apparent power with real power that
is absorbed by the equipment.
7.2.12 Power Supply
The power supply provides the electric power to the entire RF amplication system.
It is a switching power supply DC/DC 310V 50V/60A. Besides being a section that
handles the power, also has a control that protects the power supply itself in the
event of overload or high temperature.
7.2.13 Switching Power Supply
This card is a switching power supply DC/DC. It is used to feed the RF ampliers,
RF driver and pre-driver which need 32V, unlike nal R F.
7.2.14 Service Power Supply
This card is a service power supply AC/DC that is used to feed the fans and the
entire control electronics.
7.2.15 Auxiliary Power Supply
This card is a switching power supply DC/DC. It converts the 24V from the ASP-
150 to lower voltages (+7V, +18V, -18V) to feed the control electronics.
7.2.16 Fan Control
This card is controlled by CPU and provides to switch on and off all fans of
equipment. Through auto-restoring fuses avoids the turn off of all fans, in case of
malfunction of one. Moreover distributes power to the interface card.