amplifying high frequency tone() for piezo micro blower
hello.
i 'm struggling driving murata microblower.
http://www.murata.com/en-eu/products/mechatronics/fluid/feature
following datasheet, can blow air 26khz frequency between 10vpp - 30vpp.
i generated 26khz square wave 'tone ()' and amplified wave arduino motorsield.
it somehow make sound , sond becomes bigger increase voltage doesn't seems blow air. ( tried 18 v)
also tried higher voltage 20 v mosfet driver 1 doesn't make sound.
http://www.ebay.co.uk/itm/like/141498922371?limghlpsr=true&hlpv=2&ops=true&viphx=1&hlpht=true&lpid=108&chn=ps&device=c&adtype=pla&crdt=0&ff3=1&ff11=icep3.0.0-l&ff12=67&ff13=80&ff14=108&ff19=0
so, i'm thinking maybe there problems amplifying high frequency wave.
is there know this?
i 'm struggling driving murata microblower.
http://www.murata.com/en-eu/products/mechatronics/fluid/feature
following datasheet, can blow air 26khz frequency between 10vpp - 30vpp.
i generated 26khz square wave 'tone ()' and amplified wave arduino motorsield.
it somehow make sound , sond becomes bigger increase voltage doesn't seems blow air. ( tried 18 v)
code: [select]
const int
pwm_a = 3,
dir_a = 12,
brake_a = 9;
void setup() {
pinmode(brake_a, output); // brake pin on channel a
pinmode(dir_a, output); // direction pin on channel a
tone(pwm_a, 26000);
}
void loop() {
digitalwrite(brake_a, low); // setting brake low disable motor brake
digitalwrite(dir_a, high); // setting direction high motor spin forward
delay(4000);
}
also tried higher voltage 20 v mosfet driver 1 doesn't make sound.
http://www.ebay.co.uk/itm/like/141498922371?limghlpsr=true&hlpv=2&ops=true&viphx=1&hlpht=true&lpid=108&chn=ps&device=c&adtype=pla&crdt=0&ff3=1&ff11=icep3.0.0-l&ff12=67&ff13=80&ff14=108&ff19=0
so, i'm thinking maybe there problems amplifying high frequency wave.
is there know this?
code: [select]
void setup() {
tone(5, 26000);
}
void loop() {
}
post schematic diagram of setup (hand drawn ok, avoid fritzing diagrams).
the blower requires ac voltage , won't work if there dc offset. might try using coupling capacitor remove dc offset.
the blower requires ac voltage , won't work if there dc offset. might try using coupling capacitor remove dc offset.
Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > amplifying high frequency tone() for piezo micro blower
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