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94 |
| Author | Views | Views Today | Rank | Comments |
| 106,034 | 139 | |
94 |
| I have received a few emails asking for a transformerless power supply. Here is such a supply. This supply uses no heavy step down transformer and has an extremely low parts count. The circuit can be built very small and can supply small currents for small projects. The major downfall of this supply is that it is not isolated from the AC line and can only supply small currents. |
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| Transformerless power supplies are a VERY dangerous and bad idea. Transformers are far safer, and infinitely less expensive than the costs for a funeral. | ||
| i just wanna know what should i used or what can i replace for c1 coz that value is not available in our place... please please | ||
| iam a begginer here can i ask what kind of capacitor in c1 should i use? | ||
| Can I use this trnsformless supply on 220 V AC? | ||
| Can anyone help me out with 110 to 230VAC supply for transformerless with output of 6VDC 500ma circuit for battery charging. plz reply to my mail. | ||
| what is the function of C1 what is the current and voltage drop after the bridge when the supply is 220v | ||
| Hi Aaroncake! Great Stuff!! I would like to know if using capacitors in parallel will increase the current o/p capacity. 2. how is the bleeder resistor value calculated, if used? Thanks alot Haas | ||
| can u give us design for transfomerless power supply 230V ac to 24V dc | ||
| looking for a schematic for a resticked space power supply... and as we all know, a transformer to handle this would be huge and too large for the space available in my project... any help would be great... thanks... | ||
| Sir, thanks i read your design tips. It was a nice document. I want to design a transformerless 200mA power supply kindly tell me how much value of capacitor i could used. regards, Moin-ud-din | ||
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