Converter 12 Vdc to 230 Vac or Inverter

Converter 12 Vdc to 230 Vac or Inverter
As shown in the Inverter circuit diagram obove , Its used as the oscillator stage astable multivibrator contained in IC1, a CMOS 4047 (this cult series 40xx series) by varying the resistance value of R1 trimmer (220 k total resistance) can vary the oscillation frequency of 40 Hz to 70 Hz square wave, phase shifted by 180 °,  Output pin 10-11 will drives two NPN transistors TR1-TR3, which in turn is fed to the TR2-TR4. (more…)

12/220V Converter With Sine Output

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

12V to 220V 100W Inverter

12V to 220V 100W Inverter
The following circuit  Inverter 100W, simple to use and excellent ideas. If we want to work with the electrical equipment outsite home that has a voltage 220Volt /AC 50HZ, that only have  around 100Watt not exceed.  Yo need Small power inverter around 100Watt. This inverter perform modify from work electrical power forces of electric battery 12 volt provide high voltage to work. (more…)