Do not remove the battery unless the computer has been designed to be used by the customer without the battery. The test should be performed on the computer as it will be sold and used. If the computer is always used with the battery installed, then that is the way to perform the test.
EN 61000-4-11 defines voltage dips as lasting no more than a few seconds and short interruptions as lasting no more than one minute. The test itself uses a 10 second minimum time. Although there is no maximum, long durations are not implied. Obviously, a device such as a notebook computer is designed to run independent of a line voltage supply. There should be no need to push EN 61000-4-11 to extremes to force a failure. Test the computer as it is sold and use the standard test. By its design, a notebook computer survives the voltage dips and interruptions that occur in Europe. Ted Eckert Regulatory Compliance Engineer American Power Conversion Corporation [email protected] Please respond to "Morse, Earl" <[email protected]> To: "'[email protected]'" <[email protected]> cc: (bcc: Ted Eckert/SDD/NAM/APCC) From: "Morse, Earl" <[email protected]> on 01/04/2000 11:28 AM Subject: EN61000-4-11 When testing a device like a notebook computer that incorporates a battery should the battery be removed for this test? If the battery is installed any event will have to exceed the life of the battery in order to affect the system performance. A built in UPS so to speak. Earl Morse Portable Division EMC Design Compaq Computer Corporation Phone: 281.927.3607 Pager: 713.717.0824 Fax: 281.927.3654 Email: [email protected] <mailto:[email protected]> Emissions Control Laboratory 10320 Rodgers Road, EC106 Houston, TX 77070 --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
