cc at powersupply

[sp]

we r doing one project based on uc.we want 2 supply voltages one is
5v,and another is 3.3v.we r using adjustable voltage regulator to
adjust the o/p voltage.i will consume 50mA,but we slowly increase the
voltage, the current at the powersupply increse sharply that is more
than 1A it will consume.Plse tell me what r the reasons the power
supply in cc

 

[Jamie]

sp wrote:

we r doing one project based on uc.we want 2 supply voltages one is
5v,and another is 3.3v.we r using adjustable voltage regulator to
adjust the o/p voltage.i will consume 50mA,but we slowly increase the
voltage, the current at the powersupply increse sharply that is more
than 1A it will consume.Plse tell me what r the reasons the power
supply in cc
sounds like the power supply maybe going into oscillation or, you

have a component on the load that isn't able to handle the increase of
voltage.


http://webpages.charter.net/jamie_5"