DHambley
Electrical
- Dec 7, 2006
- 246
No, not "from Nantucket".
New job - The guy I replaced was a Phd; really, really good at mathematics of control theory. His software algorithm covered every parameter of the motor and system, from details of the Lq & Ld inductances to the mechanical damping of the load on the shaft. Sharp guy. However, the circuit he designed does not work; it smokes. His old notes show a lack of basic understanding of power converters, everything from Miller effect, core loss calculations, managing of ground planes, reset of current sense transformers...you name it. Power converter design is much more involved than just the control loop.
So here's my problem: I'm presenting a plan to redesign this circuit. The new boss knows nothing about power converters and the attitude is, "We don't want you redesigning boards. New boards don't work. Our proof is that a PhD couldn't even do it". The arrogance and anger of this boss was upsetting. Now, I'm not a PhD in control theory but, I have designed many power converters and laid out many boards. My circuits work. He rejected my plan before he even saw it. The fact still remains that you can't make this circuit work by changing the software.
I'm assuming you, the reader, has had to manage hard-to-get-along-with managers like the rest of us. I bet you've been in a similar situation. How did you handle it?
New job - The guy I replaced was a Phd; really, really good at mathematics of control theory. His software algorithm covered every parameter of the motor and system, from details of the Lq & Ld inductances to the mechanical damping of the load on the shaft. Sharp guy. However, the circuit he designed does not work; it smokes. His old notes show a lack of basic understanding of power converters, everything from Miller effect, core loss calculations, managing of ground planes, reset of current sense transformers...you name it. Power converter design is much more involved than just the control loop.
So here's my problem: I'm presenting a plan to redesign this circuit. The new boss knows nothing about power converters and the attitude is, "We don't want you redesigning boards. New boards don't work. Our proof is that a PhD couldn't even do it". The arrogance and anger of this boss was upsetting. Now, I'm not a PhD in control theory but, I have designed many power converters and laid out many boards. My circuits work. He rejected my plan before he even saw it. The fact still remains that you can't make this circuit work by changing the software.
I'm assuming you, the reader, has had to manage hard-to-get-along-with managers like the rest of us. I bet you've been in a similar situation. How did you handle it?