Hi all!
Not really sure where to put this, but ill try here since it is signal level.
I would like to power up a opamp using my amplifiers power lines, it has +-70v and the opamp have max +-18v. Could i use a voltage divider to get the nessecarly voltage? Or maybe use a voltage divider to get the level down to around +-30 volt and then use some voltage regulators to regulate to +-15v? It is to use for a push and pull amp to split the signal, BB DRV134 device.
Thanks
Not really sure where to put this, but ill try here since it is signal level.
I would like to power up a opamp using my amplifiers power lines, it has +-70v and the opamp have max +-18v. Could i use a voltage divider to get the nessecarly voltage? Or maybe use a voltage divider to get the level down to around +-30 volt and then use some voltage regulators to regulate to +-15v? It is to use for a push and pull amp to split the signal, BB DRV134 device.
Thanks
Resistor and zener diode shunt will do it for you. Mind the drop across the resistor (52V if you use an 18V zener) and make sure it is properly sized.
MJL21193: Okey, i will most likely go for this solution..
bob91343: Yes, i have a couple of L7815 and L7915, but those are specified to handle 70v..
bob91343: Yes, i have a couple of L7815 and L7915, but those are specified to handle 70v..
On my website I have a project - high voltage differential regulated PSU for op-amp circuits - that is designed for your problem 🙂
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