Questions tagged [leakage-current]
Leakage is the current across a boundary normally viewed as insulating, such as the spontaneous discharge of a charged capacitor, or the flow of current across a transistor in the "off" state or a reverse-polarized diode. Leakage current can also refer to the unwanted current that flows from a circuit in equipment to the chassis, or to ground. If equipment is not properly grounded, this current flows through other paths, such as the human body.
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Is a high impedance voltage leak dangerous to components on a soldering Iron?
My questions are a bit similar to others, but slightly different.
Can a high voltage (110 Vpp-50 Vpp) relative to ground at a high impedance of say 1 MOhm damage components while soldering?
What is ...
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Shower tray acting as capacitor? Measured 28 V!
I'm hoping someone here might be able to give me a good technical theory (aware without more points of data a true explanation might not be possible) to explain the phenomenon I have experienced ...
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How to Detect CT Disconnection in a Leakage Current Measurement Circuit?
I'm building a circuit to measure current. The main idea is to use a current transformer (CT) to step down the current and then measure it using three different op-amps with different gain levels, ...
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Buffer for FTDI to avoid leakage
I am using FT2232HL FTDI device for USB to JTAG purposes. JTAG connects to MCU only, no other devices are on the chain. Since the FTDI PWR is from a USB (using LDO to stabilize it to 3v3), I want to ...
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What should I do to isolate an ADC from the voltage-output sensor we are measuring?
In the system we are developing, we need to get a voltage output level from a sensor on an industrial vehicle (asphalt-moving). We have a telematic box we are using as an industrial PC, that we ...
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What is the use of this dual MOSFET in the battery section
The below schematic is taken from this TI reference design. May I know is there any reason for using 2 MOSFETs here.
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Isolation of 600V DC 5A load without bulky relays?
I have several motors that are either 600V DC 3A, or 320V DC 5A. The motors include their own control electronics (command is provided through a separate low voltage interface, that is fully isolated, ...
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Leakage Current Issue with STM32F103R8T6 in Standby Mode
I'm encountering an issue with a circuit that incorporates an STM32F103R8T6 microcontroller. In my design, the MCU's VDD domain is powered by a battery, while an external supply is used for the analog ...
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How to accurately estimate leakage current in a multilayer PCB stack-up?
I am designing a 4-layer FR4 PCB where certain traces will be used for low-current measurements in the 2–20 nA range. Given this sensitivity, I need to accurately estimate leakage currents between ...
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Detect 5 µA current in 50 A track
On our subsea robot, we have a quite strict monitoring of "earth" leakage currents. We have a line monitor injecting +/-50 V between earth and either GND or +320 V, and measuring the current ...
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Does leakage current affect the maximum voltage that a capacitor is able to reach in a RC circuit?
I collected some data on an RC circuit I created today (voltage across the capacitor and the time associated with each voltage value), and when trying to linearize the data, I noticed that I was ...
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Significant current leakage from collector to base with 2N2222 NPN BJT (12v, 1mA leakage)
According to 2N2222 NPN datasheet, the transistor's collector-base breakdown voltage is 75V, and collector-emitter breakdown is 40V. So the transistor should work with 12V at collector, in the simple ...
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How to prevent leakage current in a GPIO expander
I’m building a Bluetooth mod for the PlayStation portable. You can view its current progress here if interested.
It’s working great except for an issue in struggling to find a solution to.
I prefix ...
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Electric circuit breakers are switch on and off automatically [closed]
I'm facing strange problem at home. In normal course of electricity when there is no fluctuations in power circuit breakers are operating automatically means they switch off and after sometime ...
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How to stop current leaks on PC casing? [closed]
I'm experiencing an electrical current leak on my PC casing(metal). When I touch the metal parts of the case, I feel a mild shock or tingle. I'm concerned about potential safety hazards and damage to ...
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