Houssem85
Newbie level 5
![Newbie level 5](/styles/images/ranks/blevel2.gif)
Hello ,
I designed a power amplifier so that it plays the role of interface between my STM32 microcontroller and a pump (12V 1A).
This circuit is a good power amplifier which helped me to control this motor from the microcontroller which inject into the input a PWM 3.3V.
My question here is this:
I want to provide a more comfortable current (and voltage ) to the motor, so I change R1, or R9 or R6... ? and Why?
Vcc = 12V
Please give me a change in the circuit, so that the motor runs better.
Can you help me ??
Here attached the circuit of the power amplifier.
![power amplifier.jpg power amplifier.jpg](https://www.edaboard.com/data/attachments/40/40168-b017c1ca049cd4798939189da964070b.jpg)
I designed a power amplifier so that it plays the role of interface between my STM32 microcontroller and a pump (12V 1A).
This circuit is a good power amplifier which helped me to control this motor from the microcontroller which inject into the input a PWM 3.3V.
My question here is this:
I want to provide a more comfortable current (and voltage ) to the motor, so I change R1, or R9 or R6... ? and Why?
Vcc = 12V
Please give me a change in the circuit, so that the motor runs better.
Can you help me ??
Here attached the circuit of the power amplifier.
![power amplifier.jpg power amplifier.jpg](https://www.edaboard.com/data/attachments/40/40168-b017c1ca049cd4798939189da964070b.jpg)