Apparatus and associate methods relate to desaturation protection of a metal-oxide-semiconductor field-effect transistor (MOSFET) or an insulated-gate bipolar transistor (IGBT). Desaturation protection circuitry
Reverse-CurrentCircuitryProtection Batteryreversalcanbefataltoportableequipment.However,numerouscircuitscanprotectagainstthe backwardinstallationofbatteriesandotherovercurrent-causingconditions. Battery-operatedequipmentispronetotheconsequencesofbatteriesinstalledbackward,accidentalshort ...
The simplest way to design a battery protection circuit is by using a diode. A diode conducts current only in one direction and gets open circuited for reverse polarity. So if a diode is connected in series between the battery and the load circuit, it will allow conduction of current only ...
There is reverse polarity protection to the internal system rail for both inputs via simple diode OR-ing, but there is nothing stopping the voltage at INPUT 2 getting below GND. Ideally the current monitor would be able to handle this (considered as a fault condition, so it doesn't ...
as presented inFigure 6andFigure 7. The performance of the reverse battery protection with the correct polarity is shown inFigure 6: During power-up, the initial system current is supplied to VBBthrough the forward-biased source-to-drain diode of transistor Q1until ...
installed backward, you must design either a mechanical block to the reverse installation or an electrical safeguard that prevents ill effects when the reverse installation occurs. Mechanical protection can be a one-way connector that accepts the battery only when oriented with the correct polarity. ...
(WLCSP) Tiny 8-lead lead frame chip scale package (LFCSP) 2.0 mm × 2.0 mm × 0.55 mm, 0.5 mm pitch APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment TYPICAL APPLICATION CIRCUITS ADP198 VIN + GND REVERSE POLARITY PROTECTION VOUT EN ON OFF ...
This design idea shows a way to safeguard a boost converter from short circuits and reverse polarity. Figure 2:Simple boost converter with additional protection (inside the dashed line) The added circuitry comprises of opto-coupler IC1, N-channel MOSFETs T1 and T2, and a few passive components...
Limit 2 Applications • ADAS • Infotainment Systems • Power Tools (Industrial) • Transmission Control Unit (TCU) • Battery OR-ing Applications 3 Description The LM74610-Q1 is a controller device that can be used with an N-Channel MOSFET in a reverse polarity protection circuitry. It...
www.ti.com Technical Article Reverse-polarity Protection Comparison: Diode vs. PFET vs. a Smart Diode Solution Mathew Jacob When you fly on an airline, you'll occasionally hear "Thank you for flying with X; we know you have many choices when you fly." Similarly, engineers have many ...