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1
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1answer
76 views

modify 700VA UPS to power 65Watt Laptop Adapter for hours instead of minutes

I have 700VA UPS which I had bought in 2009 to power my Desktop Computer.It can power desktop(17" CRT monitor,CPU cabinet ) for 5-6 minutes.It has 7Ah battery(only 1), charging and inverting circuit ...
-3
votes
1answer
55 views

30-0-30 ACV 8A transformer to 12DCV [closed]

Good Day.. I have a 30ACV 8A transformer. I urgently want to make a 12DCV battery charger from it. What are the components that I should use? Please also help me out with its schematic. Your help ...
1
vote
2answers
175 views

Send analog audio through the rs232 port of a data transmitter

I would like to convert an analog audio signal into an rs232 datafeed to send it through a data transmitter and receive it at the other end. I already have the data transmitter and receiver. Thanks ...
0
votes
1answer
125 views

How do I convert ldi R17, 129 to machine code

What I got was 1110 1000 0001 0001 when I converted it to machine language. Is that right? Also what are the CPU activity steps and where am I going to use the address 0xF000? Is this the right CPU ...
0
votes
1answer
177 views

Assembly language that corresponds to machine instruction in MIPS

I am working on a problem that asks for the assembly language that would correspond to the following machine instruction in MIPS: OX3062FF80 Here is what I've ...
7
votes
4answers
988 views

Converting cordless to corded: Pulsing issue

So I am rather new at electronics and electrical engineering. But here is what I am trying to do and what I need help with. Some years ago I had bought a cheap set of cordless power tools. Naturally ...
1
vote
1answer
114 views

RJ45 convert to serial with FT232RL

l want to build something like this. l am not sure how and if is possible to connect because as it shows rj-45 image has more pins than ft232rl chip DSR (Data Set Ready) RTS (Request To Send) ...
-2
votes
1answer
615 views

what does amp draw @12vdc mean? [closed]

what does amp draw @12vdc mean? i have a 12v winch with the max saying 2500 lbs amp draw is 132 @12vdc / i want to plug into a wall 110 / so what converter do i need / thank you http://www....
0
votes
2answers
205 views

how to convert synchronous generator field voltage from per unit to voltge

I've been working in PSCAD and in this time I'm struggling with synchronous generator in PSCAD. As you know synchronous generator in PSCAD, working in per unite so I have to change its amount to ...
1
vote
1answer
90 views

Integer to std_logic type conversion

I want to assign the value of a generic that is an integer to a signal which is a std_logic type. My generic can take only two values, 0 and ...
0
votes
1answer
156 views

AC to DC Filter Confirmation

Of the circuit I need to know the name of and what it is; my guess is, is it an AC to DC current converter? Is anyone able to confirm or deny? What does it act as when its all formed together? (Once ...
1
vote
1answer
397 views

Convert (-4 to 4v) from sensor to 0-3.3v [duplicate]

Can you show me how can I make a schematic to convert signal voltage from sensor to ADC module of DSP. Sensor : -4 to 4 voltage DSP ADC: 0 to 3.3 voltage. Thank you,
-3
votes
2answers
239 views

convert ac to dc circuit [closed]

I want to build real circuit, which converts AC signal to DC. AC signal looks like below: Its period T is about 2 seconds. At the output I want to get DC as shown in the right graph with voltage ...
2
votes
2answers
2k views

Can I convert a toggle switch to momentary switch using a transistor and capacitor?

After searching online for an answer to how to convert a toggle switch to a momentary switch I found the circuit below. I've simulated it and it works in CircuitLab. simulate this circuit &...
3
votes
1answer
733 views

Convert between dBA, dBV and RMS values

How do I convert between dBA, dBV and RMS values? For example, I have used a current probe (clamp) with a gain of 100mV = 1A to measure a series of currents in dB and I would like to know the ...
-2
votes
1answer
294 views

How do you convert a signal that is either -5 or +5V to 0 or +5V, respectively

In my circuit I convert a 0 or 5V signal to a -5 or 5V signal using a schmitt trigger to get some hysteresis. However, I'd like to convert the signal back into a 0 or 5V. In effect, I'd like my ...
0
votes
1answer
248 views

combinations of binary digits for decimal numbers

Four bits are required to represent the ten decimal digits, and since there are 2^4 combinations of four binary digits, six combinations are not used and the code is said to contain redundancy. The ...
-2
votes
1answer
149 views

Is there a way to convert MPLAB X program to Intel HEX?

I want to convert the C program i wrote to Intel HEX and then use a program like PonyProg, icprog or WinPic8000 to program the microcontroller. MPLAB X doesn't support my programmer. I need to program ...
4
votes
2answers
27k views

Arduino: String to char Array

I get a String like: XXXXXXXXX Its length is fixed and 9. I need to get an char array like: ...
1
vote
4answers
4k views

Binary to BCD converison

I have an 8-bit number that the values ranges from 0 to 99. I need to convert that to a proper 8-bit BCD representation of the number using digital circuits. In case you need to know, the original ...
11
votes
3answers
2k views

Simple \$12V_{AC}\$ to \$12V_{DC}\$ Rectifier

I want to convert a \$12V_{AC}\$ power supply output to use \$12V_{DC}\$ to power some outdoor LEDs. The power supply as it stands will light the LEDs (with a slight flicker from the reverse ...
6
votes
4answers
1k views

Problems with PIC A/D conversion

I am trying to read analogic signal for a sort of mouse with a pic18f14k50 controller. Here the simple circuit: http://dl.dropbox.com/u/14663091/schematiconew.pdf . I have to read analogic signal from ...
6
votes
1answer
4k views

conversion from Moore To Mealy

Can somebody please explain how can I convert from Moore FSM to Mealy FSM and vice versa?
3
votes
4answers
394 views

Male Apple Dock Connector => USB (power only)

I have an old external battery for Apple devices (has 30 pin Apple Dock Connector), and I want to repurpose it to be an external battery for all my USB devices. Anyway, I don't have much experience ...
5
votes
1answer
480 views

Arduino with atmel tools

Hi I've done some dev using AVR's. I'd really like to use the arduino but continue using atmel tools. Is this straightforward? Is there a converter that I can use my 910 programmer with? I think ...
9
votes
4answers
3k views

Bi-Directional Step up and Step down (3.3v <-> 5, etc)

So I've been reading a few threads here and on other forums. I understand there are various solutions for stepping down or up a voltage. What I have found are the LVC series shift regs that give a ...
3
votes
4answers
3k views

Arduino Text to Speech

has anyone used the arduino to convert text to speech?