Compal NBLB2 - Charger; Over Voltage Protection

NBLB2 Service Manual
65
Offers constant Voltage 19V output source with 90W max output power
capacity.
High efficiency 83% min at 100Vac Compact Size
2.3 Adapter Electrical Specification
Input Voltage range:universal input, 90VAC to 264VAC
Inrush current: 150A Peak and no damage @220VAC
Input frequency range: 47~63Hz
Input Current: 2.0Amax at 100 VAC
Start-up time:  3sec Max. @115Vac
HOLD-UP time: 10ms min. @115VAC, full load condition
OVP: 29V max. Automatic shut down
Short circuit protection: Output can be shorted without damage, and auto
recovery
OUTPUT Voltage Regulation: 18.5-20V including the effects of line Voltage
variation, load current, ripple and noise
OUTPUT Current: Current: 0Amin, 4.74Amax continuous
OUTPUT Voltage ripple: 380mv PK-PK for full load
OUTPUT Voltage Dynamic regulation: Output voltage within18.5-19.9V, load
current 10%100%, frequency 100Hz, 50% duty cycle, recover time
1msec
DC OUTPUT PIN OUT:
PIN1: Output
PIN2 Barrel (Ring) Adapter returns.
Temperature Range:
Operating temperature: 0 C TO 40 C
Storage temperature: -20 C TO 65 C