DaKandEKid
New Member
Most configurations have it so a voltage like +12V is connected to the COM pin of a darlington transistor array.
I don't quite understand the schematic of the darlington transistor array and i was wondering if it's possible to switch the grounds on-off rather then the power.
What i'm trying to accomplish is i have 4 loads i need to switch which have a power supply of 12V and 2 loads which are powered by 5V. Initially i designed my circuit using a number of 2n7000 mosfets and it worked great. Now i'm optimizing my design and it's cheaper to using a darlington array then using seperate mosfets for each device. Additionally, i've added some inductive loads (relays) so the internal clamping diodes are a plus.
Is it possible to have the darlington array switch grounds?
Thanks in advance!
I don't quite understand the schematic of the darlington transistor array and i was wondering if it's possible to switch the grounds on-off rather then the power.
What i'm trying to accomplish is i have 4 loads i need to switch which have a power supply of 12V and 2 loads which are powered by 5V. Initially i designed my circuit using a number of 2n7000 mosfets and it worked great. Now i'm optimizing my design and it's cheaper to using a darlington array then using seperate mosfets for each device. Additionally, i've added some inductive loads (relays) so the internal clamping diodes are a plus.
Is it possible to have the darlington array switch grounds?
Thanks in advance!