Power supply circuit with DC and AC voltage

[tR|GG3rX]

DC to AC converter

some of my circuit components need dc supply voltage. but some needs ac supply voltage (i.e. vibration sensor). how can i design the power supply circuit to cater all these components need?

is it ok with a normal voltage oscillator and amplifier to convert 12V(dc) to 24V(ac). i'm thinking of oscillating the regulated voltage and drive it to the components that need ac voltage.

 

[djalli]

DC to AC converter

Look! You have 12VDC? Right?
Decide what frequency you want?

Get AC frequency which is important for your AC signal. Then for amplitude is not a problem at all. You can use opamps, transistors again to change amplitude.

 

[sztibi82]

Re: DC to AC converter

Check a DC to DC converter. It is exactly what you need without the AC-DC converter and the filter.
pls give more detalis.

 

[tR|GG3rX]

Re: DC to AC converter

djalli, i need to refer to the datasheet first. not sure whether the sensor is frequency dependent or not.

sztibi82, how can you make a DC-DC converter converts DC to AC. do you mean i must step-up the voltage first and then oscillates it? more explanation plz.

 

[sztibi82]

Re: DC to AC converter

yea, you let the oscillator's current pass the little transformer or coil, and at the other end of the transformer dont use the 4 diodes and the filter, only collect the AC.