Dynamic Load Circuit Determines a Battery’s Internal Resistance

Description

Jim Williams – Linear Technology – Design Idea EDN March 31, 2005 The circuit is used to measure a battery’s internal resistance by synchronously loading and unloading the battery terminals at a slow rate. The measured difference voltage gets amplified to indicate the batteries Internal Resistance.

• Project Type: Free
• Complexity: Intermediate
• Components number: 21-30
• SPICE software: LTspice
• Software version: April 2015
• Full software version nedeed : No