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I need easy +12V to -10V converter

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gzorzi

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small current < 100mA
Thanks
 

look for charge pumps, Maxim has many, though note that 12V inputs are rare, better selection with a lower voltage such as 5V

see, for instance:

/http://para.maxim-ic.com/compare.asp?Fam=DCDC_All&Tree=PowerSupplies&HP=PowerSupplies.cfm&ln=&SORD=612&FT_612=7101&ITEMLIST=115677,115678,115679,115722,115723,115724,115725,115733,115749,115750,115751,115794,115795,115823,115825,115829,115830,115902,115903,115922,115923,115925,115926,115930,115931,115936,115937,115938,115941
 

Use NE555 as osciallator and add diode/capacitor can do.

Regards,
 

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