The MCA Series is a monolithic control circuit containing the primary functions required for DC−to−DC converters. These devices consist of an internal . Step Down / Step Up / Inverting DC-DC Converter MCC. Apr. – Rev. – 1 -. HTC. SOP-8 PKG. DIP-8 PKG. ORDERING INFORMATION. Device. MCA/B. Jan. – Rev. – 1 -. HTC. SOP-8 PKG. DIP-8 PKG. ORDERING INFORMATION. Device. Package. MCAD. MCAGD.
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Inspriation come from ETO member Mr Al who mentioned his interest in a high efficiency 5v supply to power his Tablet PC during power blackouts etc, see his thread here; http: Sign up using Facebook. Trade Alert Trade Alerts are FREE updates on topics such as trending hot products, buying requests and supplier information – sent directly to your email inbox!
We’ve talked about vacuum tubes and even the ancient timer here before, so I don’t see this is being off topic.
Htca Supplier Supplier. Pioneer Elite vsxtx water damage no power Started by Watin Today at This part was also available from Motorola as MC I’ve even considered electrical stimulation of the touch pad itself in a designated area of the screen but 3463 would be exceptionally slow, too slow for my purpose. The other regulation occurs from the current limit sense resistor. Haven’t found the right supplier yet? I don’t have too much old Fairchild stuff on the shelf.
It went together pretty quick in about an hour, I think it took a couple more to write it up and photos, scan the schematic etc. To hct this effect you need the 334063 limit set to about 1.
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Media New media New comments Search media. Im going to be looking into this more and finally i’ll be building up the circuit. Forums New posts Search forums. So with the parts values I chose it was peaking on the current limit and in sync with the inductor ripple and the internal oscillator.
Free Shipping New and original 20pcs/lot HTC34063A HTC34063 34063A HTC SOP-8
But i’d like it to be as versatile as the Windows based program panel. Hmm, if you want to use bluetooth for data interfacing to the tablet there are lots of cheap bluetooth modules on ebay, just watch out as some are just the “module” but need a carrier PCB which means you need to make a PCB, some are a fraction more expensive but have the carrier PCB included togther with the module.
Hi MrRB, Well, i am aware of how a peak current limit works 3063 regulators but that’s not really the kind of regulation i would need for this project. China led ring light China vga rca China cable making equipment China centrifugal submersible pump China pvc sheets black China tuning light.
Hello MrRB, Thanks for posting that circuit, it looks very promising.
HTC273, HTC-3000, HTC34063
Operation is pretty simple; the PIC has 2 ADC channels, and monitors the battery voltage and current sense resistor voltage. Unfortunately, I can’t draw the circuit in my phone and won’T be back home until the 2nd of Jan. Sometimes it’s good to have a sense of the history of electronics. Problem is getting a BT adapter that works with the Android Tablet. BTW, when you look at the output waveshape for a while do you see any quick jumps once in a while? Welcome to our site! I added a brass angle shim and large sloder blob to cool the PFET which now never gets much warmer than body temp.
I was thinking of an entire inverted scheme, but this looks interesting too. This language allows quick changes right on the Android Tablet so i can set up different things quite easily. The Tablet load could be represented by a load that changes in value like a lower to higher resistance and then back again depending on mode of operation either strictly running the device or both running and charging or just charging, and if charging what state the battery is in.
The external PFET allows currents up to a few amps at good efficiency, however I have used hard current limiting at 1. Compared to more modern switchers its performance is rather lousy, but for these manufacturers only price counts. Hi Mr AL, thanks. I’m trying to get an idea when some of the classic switching controller ICs were introduced because it marks the point when switchers started to become ubiquitous.
Energy conversion efficiency is very high due mainly to the choice of external components used with the cheap SMPS IC. Tut 3, 1 15 The board above was adapted to now become a high efficiency smart charger for a 6v battery. The fig13 example should be workable fine for the PFET, it just needs to be inverted and then driven from the junction between the two resistors. Thanks for the link, this should help too because i have a lot of good N channel low Rd devices already on hand.
Personally I would prefer that to any RF comms as it will be higher datarate, simpler and probabl more reliable. Htc Integrated Circuits Electronic Components.