converting the voice pulse to electrical siganl .?

Question

i need to charge the battery with the help of voice pulse .....

Answer 1

It won't work. You can look at it this way:

One of the basic laws of physics is Conservation of Energy. You can't create energy, nor is energy lost. It is always constant, but it may change form. Let me give several examples.

The energy associated with a swinging pendulum changes from kinetic (moving) energy at the bottom of the swing to potential energy at the top of the swing. Back and forth, kinetic energy, potential energy, kinetic energy, potential energy, etc. The swing of the pendulum does slowly die down, but that is due to the gradual transfer of kinetic energy to the surrounding air in the form of heat.

In the second example, the kinetic energy of a moving car is converted to thermal energy (heat) when you hit the brakes. That's why your brakes get hot if you've been doing a lot of braking. Of course, to get the car moving in the first place, the engine converts chemical energy from gasoline to thermal energy, which expands the gases in the pistons, pushing on the pistons to make the mechanical energy that turns the wheels.

Back to your problem. To charge a battery, the energy must come from somewhere. The amount of energy coming from your voice is small, and certainly the amount of energy picked up by a microphone is much smaller, since most of the energy goes right on past the microphone. It would take a very strong voice and a lot of talking to charge a battery, even if the charging circuit were perfect with no losses.

Now, if your voice could turn a windmill.........

Answer 2

The question needs expanding. Voice pulse (aka, audio frequency or A.F.) is converted to electrical signals when you record; when you talk into a telephone, etc. Its electrical strength is usually measured in microvolts ... pretty useless for charging a battery. If you don't get an answer you feel is correct, try asking some ham radio operators, or electrical engineers at a technical school/university.

Answer 3

Agree with most of what was said, but one important thing is missing!
The electrical signal from a voice/microphone/whatever is going to have an overall average of zero, meaning it goes positive and negative (very quickly), so won't really charge a battery at all. A battery needs a positive and a negative terminal.
The trick is, you need to rectify the signal by using a rectifier (diode). Unfortunately, diodes have a voltage loss, so using a normal microphone is out of the question then. Your source would have to be more than the voltage drop of the diode to do really anything.

Answer 4

To charge any battery, the input voltage to the charger should be greater than the battery voltage so that the current flows from input to output. Since the voltage of voice pulse is too low, it can not be higher than the currently available batteries in the market which you would like to charge. Ofcourse if you have a battery whose voltage is too low, then it is possible to charge that using the energy generated by voice pulses.

Answer 5

Sorry, I think your full of lofty BS. I use a lap top, and haven't noticed enough heat being generated by it to even come close to being used to charge its battery or as any significant power source. Obviously you need a crash course in Power and what kind of voltage or current electrical devices need for proper operation. The majority of heat conversion either requires the standard power plant where a turbine or steam generator creates steam to turn a turbine to generate electricity. Or there's the use of natural circulatory systems to move are, maybe you could figure a way to move a small windmill, but now your talking units about the size of one side of a house to create the thermal dynamic which is free energy, but no where near efficient. Sure, there's the old science nerd project where you can spin a fan inside a vacuum where one side is painted white and the other black, but there's not enough motion to actually harness for what you would need to make a turbine. This is why those whom try to 'think outside the box' have limited potential, because they don't have to actually apply the laws of physics and reality of overcoming design problems, friction and other factors to make it work.

Answer 6

it is possible, though a homemade electrical circuit or through a ready one. converting voice to electrical signal is easy, but the problem in your case is that the resulting signal will have low power (voltage and current) and in-order to recharge a battery u should simulate it with voltage higher than its own voltage, so u need a very amplified sound with a special circuit and patience to keep it on the charger for a long time.