how can I get 24v voltage by 9v battery?

[suncq]

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?

thanks in advance

 

[vandelay]

You can use a switching DC/DC step-up regulator. I have noot looked at the details in the datasheet, but you are looking for something like this one

 

[memarian]

Dear,

check this link from farnell,this is selection guide that you can select and order.

https://uk.farnell.com/jsp/search/b...85&Ntk=gensearch_001&Ntt=dc/dc+converter&Ntx=

Good Luck!

 

[btbass]

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

 

[x_zoli]

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

 

[hamed_sotoudi]

Hi
look at this pdf file and enjoy.

 

[nguyennam]

The popular ON semiconductor MC34063 DC-DC converter IC is what you need.

But, be aware of 9V short battery life, as x_zoly warned.

nguyennam

 

[user0]

Lots of step-up regulators are available for your problem:

https://www.linear.com/pc/categoryP...Category.jsp&navId=H0,C1,C1003,C1042&y=6&x=40

You can also use transformer and a simple 555 circuit, but boost converters are better.

 

[kender]

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.

 

[KST]

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.

MC34063 is the good choice for you ! Goog luck !

 

[hamed_sotoudi]

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.

 

[kender]

...its about four type of common converters use one of them.

Hmm... What are the other three types?

 

[selvaraj_iit]

Use 3524 pwm for DC to DC boost converter

 

[download_crux]

Use 3524 pwm for DC to DC boost converter

any example(application note) plsssssssssssssssssssss.

 

[rthilip]

The other types are
1) Buck converter(step down)
2) Boost converter (step up)
3) Inverter
4) Transformer fly back