[DIN5 F to miniDIN 6 converter]

Dears,

Could you please guide me how to convert DIN 5 Female to miniDIN 6 male?

(For computer keyboard purpose)

Thanks,
V

[Microphone Amplifier]

I got some information on XLR pin mics.

I think there is one "Normal polarity" and another "inverted Polarity"

Should I use these like: normal to "non-inverting" and inverted to "inverting" ends of an OP amp?

Regards,
V

[Microphone Amplifier]

Thanks Audioguru.

But this mic has 3 pins. What are those? The circuits I saw were the ose with 2-pin inputs.

Please help.

[Microphone Amplifier]

Dears,

I need to construct an amplifier for the Shure SM58 mic.

The impedance is 150 ohms.

Please help.

Regards,
V

[Gain control]

Dears,

I am making an op-amp driven audio-amplifier.

For the input gain control, I used a pot.

This actually cuts some of the frequencies of audio and creates a distortion.

Please guide me how best I could make a gain control

Regards,
V

[UPS & Inverter]

thanks audioguru.

For fans and tubelights, do the inverter with 4047 suit?

Do we need a special transformer for square wave (by 4047)? or the would normal be sufficient?

Regards,
V

[UPS & Inverter]

Dears,

For house lighting purposes(assuming tubelights and Fans) which would be a good choice?

1. Sine-wave UPS
2. Square wave UPS

And what is the difference between UPS & inverter?

Regards,
V

[What is this IC used for?]

Dears,

I saw an IC "SG3524N" (from TI), in a 20' back-up computer UPS system.

The data sheet says it is a pwm IC.

But, could it be used for generating AC out of DC? (Col1&2s)

Regards,
Vivekanand

[DC to AC]

Our 500W square-wave inverter project was fixed and used in The Philippines to power incandescent and fluorescent lights, and multi-voltage TVs. It uses cheap 2N3055 transistors because power Mosfets were not available.

Ok....

Well; Do these fluorescent lights are normal fluorescent (220VAC with a choke coil) lamps? are some special creatures?

[DC to AC]

I have gone through that; mp.

I must say that was a good model ofcourse.

But to be more specific, I have raised this question only to know construct an inverter (DC to AC) with a cheap and best technique. Also, at the times, I wanted to know about different techniques employed in the said project.

Can you people please tell me about a best 50Hz, 12VDC to 220VAC inverter design technique.

By the way, is the square wave AC suitable for home appliances' (tube light, incandescent light, induction motors, etc.) usage?

[DC to AC]

Ok...MP.

Then can you briefly explain what is the design technology of a simple 500VA-1kVA lighting purpose inverter?

I have heard about using a microcontroller in inverters. But I suppose the above one doesn't use it.

[DC to AC]

Dear MP....

What is the technique to generate a set of sinewaves (of opp phase)?

Is it the regular oscillator?

[DC to AC]

Ok...

In the cited design of an inverter, you have used LM358 and then the output is fed to one darlington pair and subsequent transistors. Instead, if I use a series of op-amps like LM358s, then does it work that way?

If I want to use the MOSFETs, then what are suitable substitutes?

[DC to AC]

Ok.....


What is the maximum input(DCV) and output (ACV) voltage and amperage of this 4047?

What is the exact "design difference" between of UPS and an inverter?

[DC to AC]

I got it..

Really I was confused with monostable of 555.

Is the 4047 the only wat to make it? I mean are there any other techniques to produce AC, using transistors, etc.?

[DC to AC]

Ok...

For a general purpose lighting inverter, is the model with IC NE555 be useful?

The technique will be:
IC 555--->Square Wave AC---->Amplify------>Transformer---->output.

Will it work this way?

Which one do you prefer, 12-0-12 to 220-0 (backwards) or 0-12 to 220-0 (backwards) for this case?

[DC to AC]

i.e. 4047 produces 2 square wave ACs and you are amplifying it by op-amps and further by set of transistors. and finally feeding it to a 12-0-12 to 220-0 transformer.

My question : Is there any IC which produces sinewave signals (2 sets opposite in phase to each other)?

What is the difference in using this type of inverter compared with the sine-one?

What if I use 555 and amplify using the same topology and finally feeding it to a 12-0 to 220-0 type transformer?

[DC to AC]

Dears,

What is the usual technique employed in converting the DC to AC (50Hz); as in case of a simple voltage AC inverter.

Vivekanand

[5A regulated power supply]

Dears,

I want to make a regulated power supply (9-25V @ 5A)

Please let me know which IC should be used for this.

(Like we how we use LM317 IC)

[A project, help]

How about this ckt?

[Not Gate]

Thanks a lot for all.......

[A project, help]

Ok.....

But if my set signal stays for 3sec or still longer, then what type should I use.

Another thing the input signal is of +3V.

[A project, help]

Tell me which type of Flip Flop should I use to serve the purpose.

SR F/f with 7400 and 4011 was unsuccessful.

[A project, help]

What is the difference between TTL & CMOS in working (as digital gate ics)?

Is CMOS superior to TTL?

[A project, help]

How if I use 7400 (used as SR type F/f)? for this?