What transistor should I use to switch on/off current to servo
i want turn on & off dc 1000ma current servo using pro mini pin (e.g. digitalwrite(transistorpin, high)). i'm wondering type of transistor recommended?
i have 2 different transistors in hand: irf520 , bc547b (these came arduino starter kit), great if 1 of these work.

i have 2 different transistors in hand: irf520 , bc547b (these came arduino starter kit), great if 1 of these work.
sorry ask follow question before answered first question, gotta go bed soon.
so here is:
what smart/simple way allow 2 different amp levels same servo without dropping current 0 during switchover?
for example, @ 1 point, allow low amps (e.g. 50ma) servo, @ later time, want increase allowable amp level 1000ma.
my first thought 2 separate transistors, 1 passing 50ma servo when activated transistorpin8, , 1 passing 1000ma when activated transistorpin9 (for example).
the problem idea there short gap zero power going servo when digitalwrite(transistorpin8, low) , milliseconds later digitalwrite(transistorpin9, high). trying avoid "zero power going servo" situation.
would ok, if left pin8 high while writing pin9 high at same time (i.e. allowing power servo @ same time via 2 separate transistors), next step writing pin8 low???
in other words, servo have access 50ma, additional 1000ma power (for total 1050ma), after shutting down pin8, have 1000ma.
or perhaps there sort of special multilevel transistor can shift allowable current 0 50ma later 1000ma depending on signals send arduino pin?
as can guess, i'm new @ this...

so here is:
what smart/simple way allow 2 different amp levels same servo without dropping current 0 during switchover?
for example, @ 1 point, allow low amps (e.g. 50ma) servo, @ later time, want increase allowable amp level 1000ma.
my first thought 2 separate transistors, 1 passing 50ma servo when activated transistorpin8, , 1 passing 1000ma when activated transistorpin9 (for example).
the problem idea there short gap zero power going servo when digitalwrite(transistorpin8, low) , milliseconds later digitalwrite(transistorpin9, high). trying avoid "zero power going servo" situation.
would ok, if left pin8 high while writing pin9 high at same time (i.e. allowing power servo @ same time via 2 separate transistors), next step writing pin8 low???
in other words, servo have access 50ma, additional 1000ma power (for total 1050ma), after shutting down pin8, have 1000ma.
or perhaps there sort of special multilevel transistor can shift allowable current 0 50ma later 1000ma depending on signals send arduino pin?
as can guess, i'm new @ this...

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