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Thanks for the reply!
Wouldn't this have odd behavior at input voltages *lower* than the specified output voltage? For example, the circuit works just fine when Vcc = 3.0V. How would a 3.6V LDO fare when Vin = 3.0V? I'm concerned about using LDOs because I need to use the battery all...
I have a device with ICs in it that are rated to 3.6V or 3.7V for normal use, and I am powering it with a 3.7V (nominal voltage) Li-Ion battery.
The battery fully charges to ~4.2V. Powering a circuit with this fully charged Li-Ion battery means I will have overvoltage conditions after...
You could also get yourself a quad comparator and connect the 4 signals still to the I/O ports, but also jam one into the comparator, used in a simple rail-to-rail setup. You only need a quad comparator and a few resistors--what the comparator does is takes an input signal that goes past a...
The supply current is the current that the OpAmp draws from the positive and negative supplies, VCC and VEE, or VCC and GND--it's the current that the OpAmp requires to do its job, just like anything else has a supply current.
The input bias current is the current that the OpAmp draws into the...
How about you just use a simple transistor buffer to drive the LED, and not have to worry about the chip's sourcing capabilities? Scroll to the bottom of this link, which explains how you can do just that:
https://people.usd.edu/~schieber/psyc770/transistors101.html
The input signal to the...
It works like remote connect--I'm sure it has something to do with an IP address, but instead of this, they gave the user a 9 digit ID number--each person with the software has an ID number and a password. To connect to somebody with TeamViewer running, you open TeamViewer, select the option to...
Yes, you should try to place it close to the microcontroller, and try also follow the general routing guidelines laid out in the following PDF, for example. See Page 22, for this PIC microcontroller:
**broken link removed**
It could be the laptop's power supply capacitors. If the laptop shuts down when you plug something into the USB, that sounds like the laptop isn't able to provide enough current to whatever you plugged in and still have enough to power itself. This *could* be because the temporary energy storage...
Please be more clear about what you would like to know. You ask for a "general rule of thumb about input ripple voltage." This could mean anything!
For example, a general rule of thumb about input ripple voltage is: it is bad, and you don't want it to exist.
Another general rule of thumb is...
Do not give up! If you only have one interrupt port, but 4 sensors, you *may* be able to hook each sensor up directly to a digital I/O port on the PIC like you are currently doing, but then connect a signaling diode with a small forward voltage drop between that I/O port and the INT pin on the...
You could be missing some pulses because your application uses a "while" loop to check for input. If you want to reliably detect input when it happens, you need to use an input-capture module or something that is interrupt-based.
By using your while() loop method, you can only detect a tap when...
Transformers can have multiple windings/outputs, center taps, etc. They probably have a transformer with multiple taps and output voltages, hence the increased number of inputs/outputs.
Check it out:
https://www.allaboutcircuits.com/vol_2/chpt_9/5.html
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