Simplistic model shows battery impedance terms including resistive and capacitive elements. Capacitive component corrupts AC-based measurement attempts to determine internal DC resistance. More realistic results occur if battery voltage drop is measured u
| Authors | Jim Williams |
| Main Document | Article «Battery internal resistance meter» |
| Description | Figure 1 |
| File Format / Size | PDF / 8 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Battery internal resistance meter»
- Figure 1. Simplistic model shows battery impedance terms including resistive and capacitive elements. Capacitive component corrupts AC-based measurement attempts to determine internal DC resistance. More realistic results occur if battery voltage drop is measured u
- Figure 2. Battery internal resistance is determined by repetitively stepping calibrated discharge current and reading resultant voltage drop. S1-based modulator, clocked from frequency divider, combines with A1-Q1 switched current sink to generate stepped, 1 ampere
