Madrigal Imaging N33 ユーザーズマニュアル
15
• the presence of DC (direct current) at the output
• either over-voltage or under-voltage conditions on the AC mains
• unsafe operating temperatures in any of several critical areas
• either over-voltage or under-voltage conditions on the AC mains
• unsafe operating temperatures in any of several critical areas
within the amplifier
• sustained output current in excess of 80 amperes (which would
occur only in the event of a dead short across the outputs).
If any of these fault conditions is sensed while the amplifier is in either standby
or fully on, the amplifier will shut down completely (off mode, not merely
standby). Moreover, it will not turn on again until the fault condition is corrected.
or fully on, the amplifier will shut down completely (off mode, not merely
standby). Moreover, it will not turn on again until the fault condition is corrected.
In addition, the AC input to each transformer is fused to protect against excessive
current conditions such as driving shorted outputs. In-rush limiting prevents pre-
mature aging of power supply components during power-up, and switches off-
line once the power supply has been charged.
current conditions such as driving shorted outputs. In-rush limiting prevents pre-
mature aging of power supply components during power-up, and switches off-
line once the power supply has been charged.
Finally, the Nº33 incorporates a controlled clipping circuit that prevents the output
devices from saturating. The harsh high frequency harmonics generated by hard-
clipped output devices are avoided by the waveshaping action of this controlled
clip circuitry.
devices from saturating. The harsh high frequency harmonics generated by hard-
clipped output devices are avoided by the waveshaping action of this controlled
clip circuitry.