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using lower power supply - any danger of overheating ?

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carlcarl2

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using lower power supply

I have a small FM transmitter. Usually runs on 3.5V @600mAh. If i use a
power supply with just 3V and 500mAh will it work and is there any danger
of the power supply or transmitter overheating? I know someone (everyone) here knows more than me. Thanks
 

using lower power supply

An FM transmitter that operates with a 3.5V supply will have less power and less range if you feed it only 3V.

The mAh of a battery determines how long its charge will last. A 500mAh battery will last about 50 hours if the load current is 10mA. A 600mAh battery will last 60 hours.

The power is so low that nothing will get warm.
 

Re: using lower power supply

Depending on the nuber of transistors in your circuit and the Vce(sat) of the transistors your circuit may not work at all at the lower voltage
 

Re: using lower power supply

If it is a BJT based system, your transmitter may not work. If it is MOS based the system is likely to work even at 3.0 volt. But even with MOS based circuit the performance cannot be guaranteed.
 

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