【应用笔记】发电机负载突降保护与APC的概念

【应用笔记】发电机负载突降保护与APC的概念
AN1969
APPLICATION NOTE
ALTERNATOR LOAD DUMP PROTECTION
WITH APC CONCEPT

INTRODUCTION
In an automotive network, all the electronic modules are supplied with the battery voltage, directly on the
supply rail or through the ignition switch. Both are polluted by various surges coming from different origins.
The analysis of the energy involved for each of these disturbances shows the LOAD DUMP as the most
energetic one. Then one of the major engineer tasks is to suppress this infrequent but very aggressive
surge.
Two protection topologies are today used to avoid electronic modules