Used in motor speed control circuit microcontroller atmel attiny45p exit number 5 Kubla connected to pin opto pc817 pc817 output while the engine is controlled as isolated MOSFETs have bs170 and irlz34 Attiny45 Pb4 leg control signal number 3 is entered. Circuit driven by motors up to 15 amps. MOSFETs are driven by PWM method pwn frequency 1.8 kHz
Attiny45 LM2940CT5 regulator used to supply PWM motor control Attiny45 value you can use the 7805 Bascom project’s source code schema, and PCBs have drawings
Source: rc-schottel.ch
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-15465.zip
Published: 2011/06/19 Tags: avr project, microcontroller projects, pwm circuits
Lowpass Highpass Active Filter Circuits OpAmp
Active filter circuits used in audio circuitry, especially the bass, treble, etc.. general op amp for audio integrated circuits are built on a variety of circuits quite simple overall structure is composed of resistors and capacitors on the main controller integrated op amp. Scheme not specified in the application note this integrated power leg tl082, tl071, NE5532, tl074, tl084, tl081 op amp can be used to integrate the supply leg is in the datasheet information.
Examples and content;