New Chip for smps

alabpro · 19th August 2005, 01:38 AM

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

rinox · 2nd September 2005, 09:10 PM

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 ?

alabpro · 3rd September 2005, 02:58 AM

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

alabpro · 4th September 2005, 03:09 PM

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

richwalters · 4th September 2005, 04:07 PM

Can you lead us to an application note or sim so everything is clearer.

richj

alabpro · 4th September 2005, 04:56 PM

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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2nd September 2005, 09:10 PM	#2
rinox diyAudio Member Join Date: Oct 2004	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 ?

4th September 2005, 04:07 PM	#5
richwalters diyAudio Member Join Date: Sep 2003 Location: Alps:Tube amp designs over 150W, SMPS guru.	Can you lead us to an application note or sim so everything is clearer. richj