12 VDC-220 VAC 50W Power Converter Circuit

The ability advocate ambit is aimed to catechumen 12 VDC to 220 VAC and the action accepted as inverter. By inverting action will aftermath a 50W ability advocate that would accumulation altered baby appliances.

The DC to AC inverters are broadly acclimated in rural electrification the crave AC ability which includes solar home systems, bloom clinics, and association centers. Ability Advocate can additionally be acclimated for added photovoltaic systems that catechumen ablaze activity into electricity such as weekend homes and alien cabins, boats and caravans, and baby telecom photovoltaic systems.

Power Advocate Ambit Explanation

The ability advocate ambit is constituted by the oscillator, annular the IC1, one affiliate IC2, one ambiguous multivibrator IC3, which accord in the achievement balanced aboveboard arresting of abundance 50HZ, chase a absorber date with Fet Q1-2, the drive date Q3-4 and the ability date Q4-5, the ability transistors Q5-6, should they are placed in heatsink.

The diodes Zener D2-3, assure the ability transistors from voltage peaks, that are produced by the agent T1. Agent T1 are a simple ability transformer, with average reception, which is affiliated in the contacts of CO1. For the use that him we want, the T1, is placed in reverse, with accessory coil it is acclimated as primary, with the average accession she is affiliated in the absolute point of array 12V and the two added contacts are affiliated in the emitters of Q5-6, that are affiliated in the abeyant of arena alternately, depending on the rythm that actuate outputs 10 and the 11 from IC3.

With this way while in actuality primary breeze AC current, in accessory is created 220V AC aboveboard voltage. The use of crystalic oscillator ensures actual acceptable advertence abundance 50HZ, and use a simple clear (CR1). For bigger precision, alongside with the C1, abide a capricious capacitor Cx, that ensure the adjustment of frequency, so that we booty in point P1, abundance 204.8 KHZ.

It’s accessible that the achievement voltage in abandoned of amount is bigger than the voltage with load. Additionally the achievement voltage depend from the achievement voltage of battery. Thus for array voltage 14V, the achievement voltage is added at 10%, compared to the array voltage 12V. If the advocate assignment in amount ability 40 until 60W, again it can be acclimated agent 2X9V. Various prices of output, for array voltage 12V and agent 2X10V,

Power Converter Parts List
Resistor
R1=10Mohms
R2=100ohms
R3=1.2Kohms
R4=560Kohms
R5-6=2.2Kohms
R7-8=56 ohms 5W
Capacitor
CX=22pF trimmed capacitor
C1-2=22pF ceramic
C3=8.2nF 100V MKT C4=10uF 16V
C5=47uF 16V
C6=470nF 400V
Diode
D1=5V6 0.4W
D2-3=47V 1W
Transistor
Q1-2=BS170
Q3-4=BD139
Q5-6=BD249
Integrated Circuit
IC1=4060
IC2=4013
IC3=4047
Crystal
CR1=3.2768 MHZ crystal
Transformer-Fuse
T1=220Vac/2X10V 2X2.2A
F1=5A Fuse
F2=0.25A Fuse
Inductor
L1=1H smoothing choke