12/220V Converter With Sine Output | Schematic Diagrams


Schematic Diagrams

Useful schematic and wiring diagrams. ✔ ✔ Enjoy electronic circuits, let your idea comes to hardware

12/220V Converter With Sine Output

]]>

12V to 220V AC inverter 300x181 12/220V Converter With Sine Output

How it work :
The master oscillator, a voltage reference and comparator collected on DA2. External elements DD1 and DD2 repeated internal structure of the TL494, in the part that works is unstable at low frequencies (false positive D-flip-flop).

Further, using the low-pass filter suppresses the upper harmonics of the PWM. LPF consists of two parts. First-DA1.1, with a smooth lowpass characteristic curves. Second-DA1.2 notch filter with a frequency of 150 Hz suppression. The analysis shows that the PWM contains only odd harmonics of the first and, because such a filter is enough to form a “beautiful” sine (oscillogram 2). And, as the level of the first harmonic is almost linearly dependent on porosity, we obtain a well-managed with precision sine constant component equal to 2.5 V. Further, in addition we get the inverse sine (Pin 14 DA1.4).

In DA3, DA5, VT1, VT2 assembled the first channel of the VLF class D. The second channel, respectively, collected on DA4, DA7, VT3, VT4. At the output of the first and second channels are formed antiphase sine wave VLF (oscillogram 3).

The output of the transformer, a diode bridge fed on the feedback output voltage. Thus the output voltage stabilisator.

Specifications :
Input voltage 12 … 14V
output voltage 50 Hz 220 + /-2V
Max power 50W
Efficiency … 90%.

Most Wanted Diagrams:

]]>

, , , , , ,

Comments are currently closed.

Sponsored Link

    ]]>

Categories

Schematic Search

BatteryBlower motorBuickCadillacChevroletCigar LighterCircuit DiagramDodgeelectrical circuitElectrical SchematicElectrical SystemFordFuel PumpFuel Pump Relayfusefuse blockfuse boxFuse Holderfuse layoutfuse mapfuse panelGMCHeadlampHeaterHondaHornHorn RelayIgnition coilIgnition switchInstrument ClusterInstrument panelOldsmobilePontiacPower WindowRadioRelayschematic diagramStarter RelayStop LampStudebakerTurn SignalWiperWiring Diagrawiring diagramWiring Harnes

Schematic Diagrams

Powered by WordPress. Designed by SuperSidor. Schematic Diagram

Recent Posts