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Stabilizer Step up 110V AC to 230V AC 500VAIt can Stabilize
Mains voltage to around +/- 10% . It can be used for both 110V AC or
220V AC inputs with modifications. The Output is 220V AC. There is an
overload, under voltage and over voltage trip circuit. U2A and U2B are two comparators which controls relays K2 and K3 Respectively. One Boosts the voltage (Step-up) when mains supply is low. The other Bucks the voltage (Step-down) when mains voltage goes beyond a limit. U2C and U2D work like a window comparator to trip the
unit above and below certain preset limits. This circuit is clubbed
with a Mains control relay K1 which can be Turned ON-OFF with two
pushbuttons. This
circuit is a design i did, not tested by me as yet.With some tweaks
and modifications it might work. To view the circuit below, Click the Link of PNG or PDF
and view the Circuit, PNG can be Scrolled with Mouse and PDF can be
Viewed-Zoomed in the Browsers with Acrobat plugin. The Javascript
and Images must be enabled in your Browser. |
| PNG-Schematic
PDF-Circuit DSN-Source |
| Stabilizer Step up 110V AC to 230V AC 500VA - del20022 |
| PNG
Image Can be
Scrolled by Drag-Drop Left-Click-Mouse, PDF Requires Adobe
Acrobat Reader Plugin. |
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Put a 0.1uF 1KV pl cap across all relay contacts to avoid sparking. Relay current paths should be large and direct to supply, or when relay operates ground will lift and cause malfunction.All mains wiring and connections should be designed for high voltage and current, They should be isolated visually from control circuits by 10 mm or more. If input voltage is 230V put the two 110V windings in series in proper polarity. Put one LED with resistor for boost and buck indication
if required. Use Presets with series resistor as required so that you
can test or calibrate. The 1M dead band or hysteresis resistor can be
varied from 330K to 10M as performance demands, this resistor stops
oscillation or chattering of relays. Related Reading
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