Search found 11 matches
- Thu May 27, 2021 2:30 am
- Forum: Hardware
- Topic: Driving the Piezoelectric transduce 113KHz
- Replies: 3
- Views: 4088
Re: Driving the Piezoelectric transduce 113KHz
No, Mosfet seems to be fine (VSD-0.5V)
- Wed May 26, 2021 4:02 pm
- Forum: Hardware
- Topic: Driving the Piezoelectric transduce 113KHz
- Replies: 3
- Views: 4088
Driving the Piezoelectric transduce 113KHz
Hi,
I've 113KHz piezo transducer @113KHz,
I'm trying to drive using esp32 PWM.
The circuit is like below
https://drive.google.com/file/d/1zhKuv2c7sNym4U4FlQH316Y0FW0GAKf_/view?usp=sharing
I don't see any signal at the output to the transducer
Few more images
a) PWM from esp32
https://drive.google ...
I've 113KHz piezo transducer @113KHz,
I'm trying to drive using esp32 PWM.
The circuit is like below
https://drive.google.com/file/d/1zhKuv2c7sNym4U4FlQH316Y0FW0GAKf_/view?usp=sharing
I don't see any signal at the output to the transducer
Few more images
a) PWM from esp32
https://drive.google ...
- Mon Apr 26, 2021 6:35 am
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Hi @ ESP_Minatel
From this board linked below, I removed an unknown uC PWM resistor to MOSFET and connected ESP32 PWM Output-113KHz 50% Duty cycle, even with that transducer turns on and no mist effect.
(https://robu.in/product/dc-5v-ultrasoni ... zing-chip/)
From this board linked below, I removed an unknown uC PWM resistor to MOSFET and connected ESP32 PWM Output-113KHz 50% Duty cycle, even with that transducer turns on and no mist effect.
(https://robu.in/product/dc-5v-ultrasoni ... zing-chip/)
- Sat Apr 24, 2021 4:15 am
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Can I try with varying frequency to check whether at particular freq inside a for loop or so?
- Wed Apr 21, 2021 1:03 pm
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
I do not have the scope at the moment due to WFH.
I've checked voltage using a meter (average) value of 1.75V.
At this, I can hear a slow humming sound(turns on) from the Transducer but doesn't produce the vaporize effect.
I've changed the duty cycle value from the above code to 10, and even at ...
I've checked voltage using a meter (average) value of 1.75V.
At this, I can hear a slow humming sound(turns on) from the Transducer but doesn't produce the vaporize effect.
I've changed the duty cycle value from the above code to 10, and even at ...
- Wed Apr 21, 2021 4:18 am
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Thanks,
I've set the duty cycle to 9 for 110KHz(instead of 2.7MHz).
I don't see the transducer turning on.
Circuit of transducer circuit is:
https://www.electroschematics.com/wp-co ... eprint.png
Input Voltage 12V,113KHz Transducer.
I've set the duty cycle to 9 for 110KHz(instead of 2.7MHz).
I don't see the transducer turning on.
Circuit of transducer circuit is:
https://www.electroschematics.com/wp-co ... eprint.png
Input Voltage 12V,113KHz Transducer.
- Tue Apr 20, 2021 5:57 pm
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
I was trying with Arduino IDE
- Tue Apr 20, 2021 2:29 pm
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Hi,
I checked with the above code, gives an error: " struct ledc_timer_config_t' has no member clk_cfg
I checked with the above code, gives an error: " struct ledc_timer_config_t' has no member clk_cfg
- Fri Mar 26, 2021 2:19 pm
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Thank you.
- Fri Mar 26, 2021 3:18 am
- Forum: Hardware
- Topic: ESP32 PWM Max frequency output
- Replies: 13
- Views: 29012
Re: ESP32 PWM Max frequency output
Hi,
Can't MCPWM be used?
Can't MCPWM be used?