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I have an application where the main power source needs to be a Alkaline AA battery (0.8V to 1.8V). So, I'll have a small boost converter to supply 3V to a cortex-m3 microcontroller.
The application needs to drive a small fan (20-60mm) that only needs to put out a very small CFM (<1.0cfm)...
I'm trying to select the proper resister values to get what I want out of a Analog Devices Hall Effect Sensor. I've read the datasheet and wired the circuit a hundred times and I don't get what I expect. So I could use some help.
I'm using a AD22151 ratiometric hall effect chip from Analog...
Re: Info about www.amis.com?
Our company has used their low power wireless products for medical implants. They specialize in custom asics with all kinds of mixed technology. Impressive stuff...really.
input offset null,circuit
I have two input sensors, which are linear ratiometric hall effect devices. One is a reference and the other is a signal. When a magnet is present, there is a difference between the two.
However, the two sensors are not "matched". So when nothing is going on...
Nope, it's deffinatly complete as it's being used. Just double checked it.
Deffinatly no +24VDC in the system. Is as is.
the source that provides the pulses is software controlled and uses a non-inverting FET driver. V2 isn't actually a voltage...it represents the pulse train.
D3 is used...
how does a fet driver work
My questions are in reference to this:
**broken link removed**
**broken link removed**
Background: This circuit is a piece of a larger one for a coil driver. I have simplified the drawing for the purpose of these questions. V1 is a battery (12 volts) and V2 is a FET...
how to measure rf from garage door opener
Very good info. I think that gives me a really good direction to go in. I'll give this a shot this weekend.
Thanks
Tomas
Added after 1 hours 31 minutes:
In the process of reverse engineering the circuit. Everything seems pretty straight forward...
garage door opener modulation wiki
Actually, I have plenty of good equipment. A 500Mhz Digital Phospher OScope and a 2Ghz Spectrum Analyzer.
Also, please keep in mind that I'm not a beginner to electronics. I have a pretty vast background in 8-bit embedded design (analog, digital, etc)...
transistor garage door opener
Let me start by saying I have NO experience with RF. However, I have a great interrest.
Recently, I came upon a project that I thought would interrest me. Basically, I would like to duplicate a "gate opener" that I use to get into my apartment complex. Sure, I...
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