| ??? 04/04/05 15:58 Read: times |
#90977 - re inclined to agree Responding to: ???'s previous message |
i agree to,even a better solution is sg3524ic it can generate
high frequency and pwm to but in the way i am designing it is not well suited what i want to do is 1)excite the primary of transformer with a frequency starting from 20khz increased up in steps of 1hz or 10hz towards upper end as we increse the freqency resonance going to detune i have to find maximum power transfer frequency using adc giving primary current feedback once i found frequcency where maximum power will be transfered to secondary frequency will be lock for that particular substance to be heated after that pwm will be done to increse or decrese the current. the purpose of frequency variation is to just find the frequency where maximum power will be transffered to job this frequency depend upon material to be heated. convetional systems are using sg3524 ic which has inbuilt pwm and deadband generation. kuldeep |
| Topic | Author | Date |
| induction heating machine | 01/01/70 00:00 | |
| Discussed recently. | 01/01/70 00:00 | |
| all right | 01/01/70 00:00 | |
| What have you done so far. | 01/01/70 00:00 | |
| Very High frequency resolution | 01/01/70 00:00 | |
| guess | 01/01/70 00:00 | |
| Very High frequency resolution | 01/01/70 00:00 | |
| What methods have you considered? | 01/01/70 00:00 | |
| Inclined to agree | 01/01/70 00:00 | |
| re inclined to agree | 01/01/70 00:00 | |
| External sync. | 01/01/70 00:00 | |
| Try evaluating this | 01/01/70 00:00 | |
| echo | 01/01/70 00:00 | |
| 1 HZ resolution | 01/01/70 00:00 | |
| Duh!! | 01/01/70 00:00 | |
| ok than | 01/01/70 00:00 | |
| why f020 | 01/01/70 00:00 | |
| oh silly mistake | 01/01/70 00:00 | |
cost factor | 01/01/70 00:00 |