I'm building a pic-based data logger powered by a 9v battery. I need to provide a 24v(max 24ma) voltage for external sensor or tansmiter.
how can I get this voltage by just 9v battery?
Check out Microchip application notes on DC to DC converters. There is one that uses a pic to drive a boost regulater. If you only need 24mA. You could most probably use some spare pins on your micro to drive a boost cicuit, which is basically just an inductor and a mosfet switch. You would also need a spare A/D channel for feedback control
you should be aware that the current drawn from the battery will be around 60mA, at least. under these conditions, a regular 9V battery quickly wears out
I'm building a pic-based data logger powered by a 9v battery. I need to provide a 24v(max 24ma) voltage for external sensor or tansmiter.
how can I get this voltage by just 9v battery?
What are the external components that need +24V? May be we can devise some solution that's more clever than inductive step-up DC/DC, based on the particulars of your components.
I'm building a pic-based data logger powered by a 9v battery. I need to provide a 24v(max 24ma) voltage for external sensor or tansmiter.
how can I get this voltage by just 9v battery?
What are the external components that need +24V? May be we can devise some solution that's more clever than inductive step-up DC/DC, based on the particulars of your components.
Hi
sorry I cant upload the pdf file.search dc to dc converter in google and there u will find a pdf file download it.its about four type of common converters use one of them.