This circuit uses the negative-supply current of the op amp to measure the high-side supply current
| Authors | Martin Ossmann, B Kazay |
| Main Document | Article «Simple circuit provides high-side current sensing» |
| Description | Figure 2 |
| File Format / Size | PDF / 9 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Simple circuit provides high-side current sensing»
- Figure 1. This method for measuring high-side supply current requires an auxiliary transistor
- Figure 2. This circuit uses the negative-supply current of the op amp to measure the high-side supply current
- Figure 3. Because of the positive-supply current, the measured values (dots) do not agree well with the theoretical values (straight line)
- Figure 4. Gain compensation by adjusting RC improves the accuracy of the measurement
