1000 Threads found on edaboard.com: Convert 5v 3 5v
The simple way is using charge-pump voltage converter, such as CAT660.
The current is 100mA.
Analog Circuit Design :: 05-18-2004 04:40 :: ynhe :: Replies: 8 :: Views: 1338
I'm looking for a very simple and 'cheap' curcuit of a transducer to convert 0-5V to 0-20mA with good linearity. There is also no need to isolate in- and output. It should have a very low parts count. The fewer the parts count, the better it would fit. I'm not looking for any modules. Maybe someone knows an IC, which is well suited.
Analog Circuit Design :: 05-13-2005 05:59 :: ep20k :: Replies: 3 :: Views: 2941
I am using PIC 16F877 and i want to convert the 5V output from one ot its pins to 3.3V using resistors.how should i do it. i need to know the value of resistor and how to calculate it.
Microcontrollers :: 12-10-2005 05:22 :: zahidkhan :: Replies: 5 :: Views: 873
I have TTL logic output level +5v and 0v
I want to convert it to +5v and -5v. How to ?
Professional Hardware and Electronics Design :: 10-03-2002 15:11 :: KSA :: Replies: 5 :: Views: 1143
I have an inclinometer that outputs a range of -5 to +5v. The output of the inclinometer will be fed to my PIC that can only takes in positive voltage in the range of 0-5V.
I have the following circuit as shown in the attachment. The gain of the op amp is --0.5 in this case.
When I put Vin to Ground, Vout has a voltage of 3.75V. When I put
Analog Circuit Design :: 04-08-2009 13:32 :: garfy :: Replies: 5 :: Views: 2243
Any ideas? For the electrical power experts? We were thinking of hardwiring. Here is a little background information. It is for a basic speech recognition system:
The 5V control bus will control in parallel a group of 240V devices on a power board of 4-8 mains sockets. The group’s final design for the power conversion section suggested it
Power Electronics :: 08-24-2009 02:29 :: thaichovski :: Replies: 0 :: Views: 670
I'm trying to interface a PIC18F46k80 (5V) with a radio module, and I've just realised the module uses 3.3V. I have a circuit built already, and software designed, so I want to know if I can just do a straight swap for a PIC18LF46k80, which runs at 3.3V, without having to change the circuit (except the power supply - and some base resistor v
Microcontrollers :: 09-21-2012 09:24 :: nabla101 :: Replies: 2 :: Views: 323
Hierarchical bus system is used for improving system performance. Local bus is used in the hierarchical bus system for high speed communication between two components, e.g., processor and memory. Bus converter, such as conventionally known as north bridge in PC, is also connected to the local bus for lower speed busses.
Electronic Elementary Questions :: 09-19-2004 10:37 :: yjkwon57 :: Replies: 5 :: Views: 1296
Sorry, you cannot use an opamp for this since the only supply available is 5V. You definitely have to use some type of switching converter whether it is inductor or capacitor based.
Analog Circuit Design :: 12-26-2005 21:51 :: johnsmith101 :: Replies: 12 :: Views: 1747
In my project i want to interface atmega16 with my PC COM so i need the ic that convert 25 volt from the PC COM to 5 volt input to the conttroller and vica versa.
Thanks in advance
Embedded Systems and Real-Time OS :: 07-22-2006 09:21 :: Elnegm :: Replies: 2 :: Views: 1372
I have external inputs of +15V , -15V and +5V regulated DC supply to my circuit and I need to have internal dc regulated voltages of +15 V , -15 V, +10V,
-10V,+5V ,-5V,-13.5 V and +4.5V at different points of my circuit.
Tell me technique to have the above mentioned regulated voltages from +15v , -15v and +5v.
Electronic Elementary Questions :: 08-16-2006 08:00 :: Electronica :: Replies: 1 :: Views: 1021
How we can generate the 2.5v-0-2.5v pulse and 2.5v-5v-2.5v pulse using mc.
Microcontrollers :: 11-21-2006 11:37 :: manish12 :: Replies: 2 :: Views: 578
I am new to designs. I need to use the ADS1252. The Bipolar input is +/-5V.
Do I need to use +5V, -5V for the OP amp? In that case I cannot use OPA2350 since the maximum rating is 7V. Is there any other opamp for this application?
I am using Vref as 2.5V, How I can give bipolor +/-5V using OPA350.
Any one pls explain this circuit?
Analog Circuit Design :: 11-07-2007 09:15 :: hamdan :: Replies: 2 :: Views: 935
Use an MC34063A DC-DC converter circuit for #110 – Let’s Design a DC to DC Switchmode converter
Electronic Elementary Questions :: 06-22-2011 10:21 :: KJ6EAD :: Replies: 4 :: Views: 679
It depends on how much current you need. For low current applications, there are many ways to invert the voltage with switched capacitors:
If you need high current, you are going to
Analog Circuit Design :: 04-18-2005 18:26 :: House_Cat :: Replies: 7 :: Views: 4505
The priciple of this operation will be like this: your microcontroller will generate a voltage, say, in the 0-5V range, using a PWM or DAC, and this voltage will be used by an external circuit, based on an opamp, to convert 0-5v to 0(4)-20mA.
Have a look at this current source:
Analog Circuit Design :: 07-20-2005 08:26 :: IanP :: Replies: 4 :: Views: 3067
I want to build a simple rs232 <=> ttl (3.3V).
What type of converter can I use?
Hobby Circuits and Small Projects Problems :: 07-25-2005 03:09 :: proiettile :: Replies: 4 :: Views: 1340
I dont know weather PC power supply can converted to variable power supply but you can use it for fixed voltage PS. Its output is +5V, -5V, +12V and -12V. These voltages are good for electronic experiment and testing.
Hobby Circuits and Small Projects Problems :: 02-12-2006 08:12 :: Code Warrior :: Replies: 7 :: Views: 3577
Looks right to me.
As a sidenote if you can convert the math to integer you won't need a floating point library.
Microcontrollers :: 02-25-2008 08:35 :: blueroomelectronics :: Replies: 6 :: Views: 935
I'm designing a level shifter to convert 0~5v digital voltage to -15~25v. I know a four mos circuit can accomplish it.
1.That circuit must convert 0~5v to 0~25v, then convert it to -15~25v. Does it a circuit convert the voltage directly?
2.I add two mos to decrease the current when the voltage converts. (...)
Analog Circuit Design :: 06-19-2008 06:10 :: elliot_cai :: Replies: 1 :: Views: 574
I need to send AT commands to my nokia 3120 via a pic16F877A. Since the Pic emits only 0 - 5V as outputs, do I have to convert my 5V output signals from the UART to 3.3V? If so can anyone suggest a proper circuit or an IC to implement this 5V <-> 3.3V conversion? Thank You! :D
Microcontrollers :: 12-27-2009 02:32 :: lginside :: Replies: 2 :: Views: 976
You can convert 1-5V to 0-4V.
Refer attached schematic.
If you want to convert 1-5V to 0-5V, you have to use DC-DC converter.
Microcontrollers :: 09-29-2010 08:56 :: yviswanathbe :: Replies: 2 :: Views: 371
u must use a level converter like max232 between ur module and microcontroller to make a communication.
Electronic Elementary Questions :: 12-22-2010 23:45 :: abhi_tandon80 :: Replies: 13 :: Views: 2844
I have the following situation and am uncertain how to proceed:
* Input voltage 0V to 5V (single ended signal)
* Output voltage: differential output, 2V p-p
I have a fully differential op amp that I believe is set up correctly (Rf = 400, Rg = 1k, Vocm = 2.5V, +5V rail and ground rail).
If I input +2.5V to -2.5V I get exactly the co
Analog Circuit Design :: 05-25-2011 16:40 :: bodenste :: Replies: 2 :: Views: 1066
Someone tell me circuit diagram of a 1-bit Analog to Digital converter with chip no.'s mentioned. All the things resistors,capacitors with proper values mentioned.
I want to create a device that reads 5V DC signal and convert it into binary signal. Then this binary signal is transferred to USB port of a PC and an application reads it.
Power Electronics :: 06-08-2011 07:06 :: sisso :: Replies: 9 :: Views: 2846
Can someone suggest a circuit to convert 0-5V PWM voltage to DC current ranging from 0 to 500microamps.
It is for biomedical application so has to be precise enough(little drift, leakage)
Also the voltage developed should not be more than 40V. (The skin resistanse is assumed to be less than 100k )
Analog Circuit Design :: 08-02-2011 07:08 :: nitishn5 :: Replies: 1 :: Views: 553
I doing a project now,how i sending a digital signal(+5v) and convert to +12V without using voltage divider and transistor?any IC?
And 1 more question,can i convert +12v,+5v,+3.3v those voltage convert back to digital signal?
your reply is aapreciated XD
Electronic Elementary Questions :: 08-17-2011 05:59 :: rynxysh :: Replies: 4 :: Views: 857
I need to do things like take 3.3V from FPGA and send to various gate drivers, GPIO, etc.
Can anyone recommend some breakout boards available?
I found a decent collection at sparkfun, but looking for other options
I need to convert 3.3V to 5V
5V to 3.3V
3.3V to 15V
and I might need some nois
Electronic Elementary Questions :: 04-05-2012 08:55 :: digi001 :: Replies: 0 :: Views: 218
The 433mhz modules have been covered many times in this forum - a search will soon show them.
Your two main problems are that the standard 16F877A will only run at 5v, you need a 16LF877A to run everything on 3v3.
There are many ways to convert the 5V signals to 3v3 such as a 74HC4050, for 3v3 to 5V you might be able to read the signal
Microcontrollers :: 09-15-2012 15:50 :: wp100 :: Replies: 3 :: Views: 449
But adc just reads the voltage....
- - - Updated - - -
is there any formula to convert voltage into current?
Microcontrollers :: 03-06-2013 11:21 :: Alkeshwr :: Replies: 16 :: Views: 419
A ferrite cored transformer works best at medium frequencies and certainly not DC so you need to convert your 5V DC to at least 5V AC at maybe 50KHz before the transformer will work. It can be a difficult topic and not easy to explain in a few words. Do some research on SMPS (Switch Mode Power Supply) for ideas on how it works.
Power Electronics :: 10-07-2014 03:40 :: betwixt :: Replies: 6 :: Views: 298
Could any one tell me that what are standard color of power wires for DC :+5V, - 5V, +12V, - 12V and also AC110V/220V. I 'm very please if you could give me both American Standard and International Standard.
Thanks a lot,
Other Design :: 06-24-2002 00:55 :: khanh :: Replies: 3 :: Views: 2350
I´m in need to design a voltage reference to be used with an A/D converter (10bit). I need the reference to be 2.048V
I´m designing a 5V system.
So, I was looking at the LM385 because the referensce design looked simple but I do not know how to convert it from 9V to 5V system (if possible).
Later, because of the need of greater Temp.
Hobby Circuits and Small Projects Problems :: 03-12-2003 11:08 :: niz_se :: Replies: 7 :: Views: 1818
Does anybody have the schematic for the Xilinx Parallel Cable IV???
There have been some changes because it now supports ALL Xilinx FPGA's.
It can support 1,5-5V supply voltage.
There have been some schematics for the Xilinx Parallel Cable III, but this doesn't work with the Spartan II.
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-18-2003 10:42 :: venz :: Replies: 4 :: Views: 7804
I have a 16 bit DAQ connected to a PC using the USB port, NI LabVIEW driver for this DAQ is available, I want to connect a pressure transducer to this DAQ to measure some pressure value between the lips, what I want to ask is the following:
What is the best method to measure the pressure value from the transducer ? , is it to get the maxim
PC Programming and Interfacing :: 01-08-2005 04:04 :: hamadeh :: Replies: 1 :: Views: 979
I've seen a vew messages on the Net here and there, and I'm having problem with a Spartal-III eval board.
I have an eval board with a Parallel-III interface. The JTAG chain goes like this:
TDI ---> XCF02S ---> XC3S400FG456 --->TDO
When I use the Xilinx iMPACT software (6.2.03i), while I have an design loaded on the FPGA, I can not get rel
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-25-2005 10:45 :: Big Boy :: Replies: 1 :: Views: 947
I think use a diode to and a res can do this function.
use diode to product the current direct to gnd,selecting res apropriately whitch the current thru could product +ve
Thanks. i would like to convert -12V into +5V. I would be happy if u can still elaborate ur suggestion.
Analog Circuit Design :: 06-02-2005 05:40 :: huangjw :: Replies: 6 :: Views: 1545
who can give me some advice of designing high side power mosfet voltage buffer?
just implemetation of vout = vin - 5v, 5v
Analog IC Design and Layout :: 06-08-2005 03:09 :: totoro :: Replies: 0 :: Views: 627
I live in India. Where can I get the following parts or their replacement
1. LM1086CS-5V (5V regulator @ 1.5A)
2. LM1086CS-3.3V (3.3V regulator @ 1.5A)
3. LF25CDT (2.5V regulator @ )
4. FAN1112 (1.2V regulator @ )
PCB Routing Schematic Layout software and Simulation :: 06-14-2005 05:31 :: gold_kiss :: Replies: 1 :: Views: 772
8 channel input,12bit, input range:-5v --- +5v,
>=200k/Channel for Eight Channels
Analog Circuit Design :: 08-04-2005 05:25 :: lzh08 :: Replies: 0 :: Views: 571
hi........can anyone help me:cry:. im trying to fix my PC in my car, i need a 12VDC-DC ATX powersupply which can produce -12V,+12V,-5V,+5V,+3.3V,Gnd.
Hobby Circuits and Small Projects Problems :: 08-27-2005 04:13 :: badboyscad :: Replies: 3 :: Views: 923
this is not a difficult system to build, but you'll need several dc-dc converters. probably a 3-output converter for +5, +12 and +3.3, and a 1-output converter for +5(standby). I think you could make -12v, 0.5A with just a flyback winding on the +12v inductor, and a cheap LDO. breaking down the 120v input wouldn't be too bad either, but (...)
Analog Circuit Design :: 08-29-2005 23:15 :: electronrancher :: Replies: 1 :: Views: 1252
Whats it called when a waveform starts BELOW the zero crossing point?
example: triangle waveform
starts from -6 goes up to +4
or starts -10 goes up to +2
Mostly DC offset Raises the Waveform up ABOVE the zero crossing point what makes the waveform go Below the zero crossing point? what would cause the cir
Electronic Elementary Questions :: 11-28-2005 22:23 :: walters :: Replies: 7 :: Views: 742
Hey u there :)
umm i'm working on a design of a smart tracking system and i got that little problem in my circuitry design i need ur advice with :?:
how can i convert a 5 V input to 12 V output? :?::?:
thankiez alot u guyz..:D
Analog Circuit Design :: 12-08-2005 06:41 :: Electro-Cute 3:16 :: Replies: 14 :: Views: 5561
I am designing a 4-layer pcb with 2 power planes (Vcc and GND) . The GND plane is further split into Agnd-Dgnd and the Power plane is split into +5V,-5V,+3.3AV, and +3.3DV.
what check list or Rules of thumb should I take into account for designing a multi-Layer pcb in general and this design in particular. A quick response wil
PCB Routing Schematic Layout software and Simulation :: 08-08-2007 03:44 :: qasmi :: Replies: 3 :: Views: 1106
we need a power supply(smps) ,which should give o/p vlotages +3.3v,5v,-5v,12v,-12v.And the power supply should have remote sensing facility.suggest any power supply meeting all above reqiurements
Analog Circuit Design :: 11-12-2007 00:30 :: ysrkreddy :: Replies: 2 :: Views: 470
Your circuit wastes 5mA from the batteries.
Its outputs will be +5V and -5V only when the batteries are brand new and there is no load current from the 5V outputs.
As for the load, it will be supply to a Ultrasonic Sonar sensor and a AD654 Voltage to frequency converter, both load will be powered by 5 VDC
This was wh
Electronic Elementary Questions :: 03-12-2008 11:02 :: NicholasTok :: Replies: 7 :: Views: 700
Both have no ground pin but only V+ and V- supply pin while The single supply opamp: v+ -> VDD,v- -> GND. Dual supply opamp: v+ -> VDD v- ->VSS. But how does the opamp know this difference in supply configuration? I think every opamp can be used as single or dual supply depend only on how you connect V+ and V- supply pin, So why we still diff singl
Analog IC Design and Layout :: 04-10-2008 00:41 :: leohart :: Replies: 4 :: Views: 3002
what type of op-amp i should use to convert 4-20ma to 0-5v
lm324 or 741 or what?
can i use 741ic
Microcontrollers :: 06-18-2008 10:35 :: mohannad100 :: Replies: 3 :: Views: 1475
squarer then counter then DAC
i mean by squarer a limiter that detect the edges and convert the signal to a square wave with the same frequency
Analog Circuit Design :: 06-19-2008 01:49 :: safwatonline :: Replies: 3 :: Views: 1544