2 Cell phone chargers in series to make 10V

[areebaa]

Hi,
I would like to make 10V from two 5V cell phone chargers to power the portable small fan and ultrasonic transducer of humidifier. So, can i connect the outputs of cell phone chargers in series to make 10V.
thanks

 

[srizbf]

Hi,
I would like to make 10V from two 5V cell phone chargers to power the portable small fan and ultrasonic transducer of humidifier. So, can i connect the outputs of cell phone chargers in series to make 10V.
thanks

without knowing how the grounds of each charger is connected internally , you cannot connect them in series.

 

[areebaa]

without knowing how the grounds of each charger is connected internally , you cannot connect them in series.

i mean in this way as shown in picture

 

[srizbf]

is there any connection between mains and -ve dc supply terminals internally ?

 

[hamidooon]

1st you remember and chek two chargers are identical one means its current ratings are same,voltage rating can be variable by placing 4148 or any diode in bet +ve of first and -ve gnd of second you can archive 10 v

 

[areebaa]

no it is isolated i think

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is there any connection between mains and -ve dc supply terminals internally ?

no it is isolated i think

 

[srizbf]

no it is isolated i think

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no it is isolated i think

make sure that.
then you can treat it as in your fig as two 5v batteries.