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Standby
The set goes to Standby in the following cases:
After pressing the 'standby' key on the remote control.
When the set is in protection mode.
In Standby, the power supply works in 'burst mode'. Burst mode can be used to reduce
the power consumption below 1 W at stand-by. During this mode, the controller is active
(generating gate pulses) for only a short time and for a longer time inactive waiting for
the next burst cycle.
In the active period, the energy is transferred to the secondary and stored in the buffer
capacitor C
in front of the linear stabilizer (see Figure below). During the inactive
STAB
period, the load (e.g. microprocessor) discharges this capacitor. In this mode, the
controller makes use of the Safe-Restart mode.
Figure: Supply standby mode (burst mode)
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