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- Simple Inexpensive Ideal-Diode MOSFET Circuits
The components are inexpensive, consisting of a P-MOSFET (for use in the positive rail) with a dual PNP transistor and two resistors Q1 and Q2 form a current mirror circuit that act as a differential amplifier which responds to the voltage drop across the MOSFET
- Low Cost US PCB Manufacturers | Electronics Forum (Circuits, Projects . . .
Sadly, the days of inexpensive PCBs from China are over for US citizens – you all know why so we need not discuss that The prices from China still beat the prices from US sources in most cases, but even then, there is uncertainty in what the real cost may be with the fluctuating rule changes
- Sources of Inexpensive large enclosures | Electronics Forum (Circuits . . .
What sources or techniques methods do you know of for large inexpensive project boxes (aka enclosures) in the USA? (at this point, I would have to venture you gophert, are the one "cry [ing] for social interaction and trying to prolong the interaction"
- Low Voltage Enable with Latch | Electronics Forum (Circuits, Projects . . .
Here is my complete circuit Circuit in LTspice - ENABLE node voltage is green, input is blue, Q2 base-emitter voltage is red The overshoot when C1 starts up the circuit causes too much bas-emitter voltage and fries Q2… I can lessen C1 to reduce overshoot, but then the circuit does not
- Inexpensive DC-DC converter SMPS design idea and suitable topologies . . .
Inexpensive DC-DC converter SMPS design idea and suitable topologies MD MUBDIUL HASAN Nov 16, 2021 buck converter dc dc high power
- New Life For PICKIT 3 Stand Alone Programmer App?
Just wondering if anyone has tried Jaakko Kairus' PICKITminus project to upgrade the Stand Alone Programming App' for their PICKIT 2 or PICKIT 3 to program many, many, almost all (?) PIC devices? Also, back in 2020 I asked if there was a way to avoid buying an expensive PICKIT 4 to program
- Simple, inexpensive vehicle immobilizer | Electronics Forum (Circuits . . .
DesignerDan submitted a new article: Simple, inexpensive vehicle immobilizer - This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to make, install
- Capacitor to power a device during vehicle cranking.
The cap needs to be larger than that C=q V For 500mA for 1 second, q = 0 5 x 1 = 0 5 coulombs For a 3V capacitor discharge drop during that 1 second, the required capacitor size is 0 5 3 = 0 166F, which is a very large capacitor You would likely use some type of super-capacitor for that You don't need a resistor between the cap and module That will just reduce the available energy from
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