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Old 19th August 2005, 01:38 AM   #1
alabpro is offline alabpro  Thailand
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Default New Chip for smps

Hi all
I think i new chip for smps by use Micro# pic 1220
FEATURES
1. PWM 100kHz AT 55 step and if up to 50 step Pwm=120kHz-150Khz 33-50ms
2. essy 3 Temp senser for tranformer and heaksink
3. essy duty 1-50 step by POT for dc inverter welder
4. essy protec control desing
4. essy power relay drive
5. essy to CHARGE BATTERY MODE

PLS commen
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Old 2nd September 2005, 09:10 PM   #2
rinox is offline rinox  Italy
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Excuse me, but the schematic is not really clear to me.... may be someone can understand.
Also, why to use a pic when you can do the same with a 50 cents IC ?
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Old 3rd September 2005, 02:58 AM   #3
alabpro is offline alabpro  Thailand
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Quote:
Originally posted by rinox
Excuse me, but the schematic is not really clear to me.... may be someone can understand.
Also, why to use a pic when you can do the same with a 50 cents IC ?
hi rinox
I want essy desing
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Old 4th September 2005, 03:09 PM   #4
alabpro is offline alabpro  Thailand
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Unhappy Re: New Chip for smps

Quote:
Originally posted by alabpro
Hi all
I think i new chip for smps by use Micro# pic 1220
FEATURES
1. PWM 100kHz AT 55 step and if up to 50 step Pwm=120kHz-150Khz 33-50ms
2. essy 3 Temp senser for tranformer and heaksink
3. essy duty 1-50 step by POT for dc inverter welder
4. essy protec control desing
4. essy power relay drive
5. essy to CHARGE BATTERY MODE

PLS commen

Quote:
Originally posted by alabpro

hi rinox
I want essy desing
edit
Hi all
I think i new chip for smps by use Micro# pic 1220
FEATURES
1. PWM 100kHz AT 55 step and if up to 50 step Pwm=120kHz-150Khz 33-50ms
2. easy 3 Temp senser for tranformer and heaksink
3. easy duty 1-50 step by POT for dc inverter welder
4. easy protec control desing
4. easy power relay drive
5. easy to CHARGE BATTERY MODE
6. easy desing
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Old 4th September 2005, 04:07 PM   #5
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Location: Alps:Tube amp designs over 150W, SMPS guru.
Can you lead us to an application note or sim so everything is clearer.

richj
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Old 4th September 2005, 04:56 PM   #6
alabpro is offline alabpro  Thailand
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Quote:
Originally posted by richwalters
Can you lead us to an application note or sim so everything is clearer.

richj
pls.wait for full sch. switching power supply for PIC1220
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