Akai LCT-4216 Service Manual page 56

SPECIFICATION
3-2. DC OUTPUT CHARACTERISTICS:
3.2.1. Output Characteristics:
Output Voltage
Minimum load current
Normal load current
Maximum load current ( @ max. total power )
Line regulation
Load regulation
Cross regulation
Ripple and noise
Note 1 : The maximum DC output power should be less than 258 Watts.
Note 2 : The output voltage shall stay within regulation band as specified in above for a
Note 3 : Ripple is defined as a composite of a power line frequency component plus a
MODEL NO. PSM250-405
REVISION
Item
+24V peak power 8.2A @ 3 minute.
25 % step load change at 1A/uSec. Load capacitance is defined at minimum load
capacitance shall be zero and maximum load capacitance shall be 2200uF for
35V output.
high frequency component due to the power oscillator. Common mode noise
which may be observed due to oscilloscope connections, different ripple and
noise at power supply shall be as shown below when measured under nominal
load with an oscilloscope with a bandwidth of 20 MHz, the output should be by
passed a 0.1uF ceramic disk capacitor in parallel with 10uF electrolytic capacitor
to the system load, the length of ground wire on probe should not longer than
40mm.
01
CH1 CH2
+5V +5Vsb
0.5A 0.1A
3A 0.5A
3.5A 0.75A
±5% ±5%
±5% ±5%
±5% ±5%
100mVp-p 100mVp-p
DATE 2005.03.14
CH3 CH4
+18V +24V
O.2A 0.5A
3A 7.2A
3.5A 7.5 A
±5% ±5%
±5% ±5%
±5% ±5%
180mVp-p 240mVp-p
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