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| Skema Rangkaian Inverter 100watt 2N3055 |
IC1 Cd4047 wired as an astable multivibrator produces two 180 degree out of phase 100 Hz pulse trains. These pulse trains are are preamplifes by the two TIP122 transistors. The out puts of the TIP 122 transistors are
amplified by four 2N 3055 transistors (two transistors for each half cycle) to drive the inverter transformer. The 220V AC will be available at the secondary of the transformer.Nothing complex just the elementary inverter principle and the circuit works great for small loads like a few bulbs or fans.If you need just a low cost inverter in the region of 100 W,then this is the best.Note:
- A 12 V car battery can be used as the 12V source.
- Use the POT R1 to set the output frequency to50Hz.
- For the transformer get a 9-0-9 V , 10A step down transformer.But here the 9-0-9 V winding will be the primary and 220V winding will be the secondary.
IC CD4047 Description
IC CD4047B is capable of operating in either the monostable or astable mode. It requires an external capacitor (between pins 1 and 3) and an external resistor (between pins 2 and
3) to determine the output pulse width in the monostable mode, and the output frequency in the astable mode. Astable operation is enabled by a high level on the astable input or low level on the astable input. The output frequency (at 50% duty cycle) at Q and Q outputs is determined by the
timing components. A frequency twice that of Q is available at the Oscillator Output; a 50% duty cycle is not guaranteed. Monostable operation is obtained when the device is triggered
by low-to-high transition at a trigger input or high-tolow transition at b trigger input. The device can be retriggered by applying a simultaneous low-to-high transition to both the a trigger and retrigger inputs. A high level on Reset input resets the outputs Q to low, Q to
high.
3) to determine the output pulse width in the monostable mode, and the output frequency in the astable mode. Astable operation is enabled by a high level on the astable input or low level on the astable input. The output frequency (at 50% duty cycle) at Q and Q outputs is determined by the
timing components. A frequency twice that of Q is available at the Oscillator Output; a 50% duty cycle is not guaranteed. Monostable operation is obtained when the device is triggered
by low-to-high transition at a trigger input or high-tolow transition at b trigger input. The device can be retriggered by applying a simultaneous low-to-high transition to both the a trigger and retrigger inputs. A high level on Reset input resets the outputs Q to low, Q to
high.
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