Questions tagged [sense]
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6 questions
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What is the function of connecting the collector of one NPN to the base of another NPN in an overcurrent detection circuit?
I am currently doing a reverse engineering project of a board. I found this particular circuit for current limit detection for both +12V and GND by using a couple of INA193 (IC1 & IC3) and LM2903 (...
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Expected voltage when probing a computer PWM-fan socket's sense pin?
I'm using my multimeter to probe a proprietary 6 pin socket on the motherboard of a PC computer that connects to 2 small 25 mm fans. The socket's pins are unlabeled. Both the motherboard and socket ...
- 13
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Sensing Resistor in Buck-Boost controllers
In the LT8390, there are two sensing resistors. The one connected to LSN/LSP is called RSENSE(Buck), and the one connected to ISP/ISN is called RSENSE(BOOST). To illustrate this more clearly, I've ...
- 534
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Why is my current sensor multiplying voltage by 5000?
I'm testing the below current sense circuit that uses an INA210.
When the current flowing is 0.25 A the voltage on pin "CUR" is 1 V (measured by controller and multi-meter).
By my ...
- 345
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Current sense transformer outside its freq range
What happens if I use a current sense transformer outside its specified frequency range? For example a transformer is rated for 20-200 kHz but I want to use it to measure 50 Hz power line frequency ...
- 21
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Simulation Issues in Forward converter- Current Mode Design
I am trying to simulate the LT8310 part in LTspice. Based on my understanding, this part can operate in either the current mode or the duty mode. I am interested in the current mode design. The block ...
- 534