Hi guys,
Recently I bought what I think is a boost converter on ebay ( http://www.ebay.com.au/itm/172105952906?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT ) To convert 3.5V to 450V.
I was wondering if a resistance was necessary on the output to prevent a circuit from drawing too much current when connected to the module (in other words shorting the output of the module). OR would the boost converter have a resistance on the primary side of the module already built in that prevents too much current anyway? Even if there was a resistor on the primary side would it still be possible to somehow draw too much current on the output?
The fact that the module is stepping up the voltage using an inductor is the bit that leads me to believe a resistor on the primary side of the module wouldn't matter, and you would need a resistor on the output as well to prevent the connected circuit from drawing too much current when the current is being generated by the collapsing magnetic field in the inductor.
The reason i ask all this is because if i do need a resistor on the output, then it would need to dissipate something like 20 Watts of power and have a resistance of something like 10Kohm which ends up being rediculously beefy and expensive for me being a broke uni student.
Recently I bought what I think is a boost converter on ebay ( http://www.ebay.com.au/itm/172105952906?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT ) To convert 3.5V to 450V.
I was wondering if a resistance was necessary on the output to prevent a circuit from drawing too much current when connected to the module (in other words shorting the output of the module). OR would the boost converter have a resistance on the primary side of the module already built in that prevents too much current anyway? Even if there was a resistor on the primary side would it still be possible to somehow draw too much current on the output?
The fact that the module is stepping up the voltage using an inductor is the bit that leads me to believe a resistor on the primary side of the module wouldn't matter, and you would need a resistor on the output as well to prevent the connected circuit from drawing too much current when the current is being generated by the collapsing magnetic field in the inductor.
The reason i ask all this is because if i do need a resistor on the output, then it would need to dissipate something like 20 Watts of power and have a resistance of something like 10Kohm which ends up being rediculously beefy and expensive for me being a broke uni student.