All Questions
Tagged with current-sensing high-voltage
9 questions
5
votes
1
answer
430
views
Wide range current sensing at +5kVDC
I am working on a control and interface board for high voltage supplies, which requires some current measurement to be implemented. The general terms of the question are similar to this one. The ...
- 203
4
votes
3
answers
3k
views
Op amp with transistor in feedback
I am currently looking for a high side current sense IC. I have noticed that most of them that are without galvanic separation, are using an op amp with bjt transistor like in bellow schematics:
The ...
- 1,699
3
votes
2
answers
386
views
High side current sensing for negative high voltage
I need to monitor the current for a negative high voltage supply.
I implemented the following circuit in a simulation program:
https://www.maximintegrated.com/en/app-notes/index.mvp/id/1867
But ...
- 147
2
votes
1
answer
864
views
High side, high voltage, micro ampere current sensing
I am working on a project in which I am required to sense current in micro ampere range from a 2 kV power supply. Here is a link of an article which I am referring.
https://www.analog.com/en/technical-...
- 51
2
votes
1
answer
223
views
Measuring AC Current at High Voltages (up to 600VAC)
I've been looking at various ways to measure current for a while now, and am stumped on how to read high-side AC Current Measurements ohmically (no Hall Effect sensors). My initial thought was to use ...
- 425
2
votes
0
answers
206
views
High voltage 1100 V current sense on the high side
I have the circuit that you see below.
My load is a photomultiplier tube equivalent to a 3.63Mohm resistor.
My power supply can deliver max 4W (2kV and 2mA). I use it on 1100V and the load draws ~...
- 147
1
vote
1
answer
695
views
High voltage and cheap differential amplifier
Can I use a LM324N (very common) op-amp to act as a high-side differential current sense op amp at high voltage?
The Differential Amplifier
The differential input voltage rating is 32v, but my load ...
- 924
1
vote
1
answer
60
views
How to sense if a heater is plugged and on
I want to remotely check if one of my home sockets (which happens to power a heater) is transmitting current or not. I do this as a hobby project, so my main priority is to learn through the process ...
- 1,385
0
votes
3
answers
299
views
Current sensing on negative 1.1kV DC rail
I searching for a way to do high side current sensing on a -1100V DC rail.
My HV is generated from the hamamatsu C9619 High voltage power supply module and it powers the hamamatsu R647P ...
- 147