Mixed transistors

Thread Starter

spanish fly

Joined Apr 27, 2010
11
Could somone please help me and tell me if this part circuit is feasable.
It comes from a controller for a golf trolley, it doesn't work,
I hope i've included enough info for someone with knowledge to work it out.
The transistors have been removed from board and test out as listed, I did find out that the S 8050 can be a PNP or NPN.:mad:
 

Attachments

praondevou

Joined Jul 9, 2011
2,942
There is too much information missing.

I assume you drew the circuit from the board, right?

The FET looks like if it's inverted, so does the voltage regulator.

What's the switch after the relay?

The two npn/pnp before the FET look like a driver driven by Q1.

Common of the voltage regulator should be tied to GND.

Post some pictures, golf trolley model etc. as much information as possible.
 

Attachments

Last edited:

Thread Starter

spanish fly

Joined Apr 27, 2010
11
Thank you Praondevou for your reply to my problem.
I will try and work out a full diagram of the circuit, made one but too large to download.
Some info at the moment.

Has REPOW on outer case.
No make of trolley.
I think Its of Chinese design.
There are 8 pins at end of board 1=live from relay 2=return from the switch in the handle, 3,4,5, battery condition lights, 6,7,8, connected to pot.
Mosfet=P60NF06
Schottky=MBR2010oct
18 pin IC=SN74HC139N
8 pin IC=CY8C22113
 

Attachments

Top