Showing posts with label inverter. Show all posts
Showing posts with label inverter. Show all posts
Wednesday, November 12, 2014
6 V to 12 V Power Supply Inverter
This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.
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R1, R4 2.2K 1/4W Resistor
R2, R3 4.7K 1/4W Resistor
R5 1K 1/4W Resistor
R6 1.5K 1/4W Resistor
R7 33K 1/4W Resistor
R8 10K 1/4W Resistor
C1,C2 0.1uF Ceramic Disc Capacitor
C3 470uF 25V Electrolytic Capcitor
D1 1N914 Diode
D2 1N4004 Diode
D3 12V 400mW Zener Diode
Q1, Q2, Q4 BC547 NPN Transistor
Q3 BD679 NPN Transistor
L1 See Notes
MISC Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board
Read More..
6 V to 12 V Power Supply Inverter Circuit Diagram
Part List:
R1, R4 2.2K 1/4W Resistor
R2, R3 4.7K 1/4W Resistor
R5 1K 1/4W Resistor
R6 1.5K 1/4W Resistor
R7 33K 1/4W Resistor
R8 10K 1/4W Resistor
C1,C2 0.1uF Ceramic Disc Capacitor
C3 470uF 25V Electrolytic Capcitor
D1 1N914 Diode
D2 1N4004 Diode
D3 12V 400mW Zener Diode
Q1, Q2, Q4 BC547 NPN Transistor
Q3 BD679 NPN Transistor
L1 See Notes
MISC Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board
Monday, October 20, 2014
12 Vdc 120 Vac Inverter Circuit Diagram
An Inverter is a device that converts 12 volts d.c to 120 volts a.c. , which is what we use in our homes. This project will handle about 300 watts, which is perfect for lights, small T.V.s and radio equipment.
This Inverter takes 12 volt d.c and steps it up to 120 volt a.c. The wattage depends on which transistors you use for Q1 and Q2, as well as the "Amp Rating" of the transformer you use for T1. This inverter can be constructed to supply anywhere from 1 to 1000 (1 KW) watts. If Q1, Q2 are 2N3055 NPN Transistors and T1 is a 15 A transformer, then the inverter will supply about 300 watts. Larger transformers and more powerful transistors can be substituted for T1, Q1 and Q2 for more power. Note: Dont try to run inductive loads (motors...) off this inverter.
This Inverter takes 12 volt d.c and steps it up to 120 volt a.c. The wattage depends on which transistors you use for Q1 and Q2, as well as the "Amp Rating" of the transformer you use for T1. This inverter can be constructed to supply anywhere from 1 to 1000 (1 KW) watts. If Q1, Q2 are 2N3055 NPN Transistors and T1 is a 15 A transformer, then the inverter will supply about 300 watts. Larger transformers and more powerful transistors can be substituted for T1, Q1 and Q2 for more power. Note: Dont try to run inductive loads (motors...) off this inverter.
12 Vdc - 120 Vac Inverter Circuit Diagram
Parts:
C1, C2 68 uf, 25 V Tantalum Capacitor
R1, R2 10 Ohm, 5 Watt Resistor
R3, R4 180 Ohm, 1 Watt Resistor
D1, D2 HEP 154 Silicon Diode
Q1, Q2 2N3055 NPN Transistor (see "Notes")
T1 24V, Center Tapped Transformer
Misc. Wire, Case, Receptacle (for output)
Fuses, Heatsinks, etc.
Caution: This circuit can cause serious injury or death. Keep away from children.
Friday, October 3, 2014
Mosfet 1000 Watt Power Inverter
This power inverter circuit will provide a very stable “Square Wave” Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various “off the shelf” transformers can be used. Or Custom wind your own for best results.
Additional MosFets can be paralleled for higher power. It is recommended to Have a “Fuse” in the Power Line and to always have a “Load connected”, while power is being applied. The Fuse should be rated at 32 volts and should be aproximately 10 Amps per 100 watts of output. The Power leads must be heavy enough wire to handle this High Current Draw! appropriate Heat Sinks Should be used on the RFP50N06 Fets. These Fets are rated at 50 Amps and 60 Volts. Other types of Mosfets can be substituted if you wish.
There ARE Limitations! I have had numerous requests for an Inverter for 1000 watts and Even MORE. Sorry I Don’t feel this is Practical. At 1000 Watts and operating from a 12 Volt Source, the Input Current will be close to 100 AMPS. That would Require a HUGH Size of a Primary Wire.
Wednesday, September 24, 2014
Simple Power inverter is Bidirectional Circuit Diagram
If you want to swap charge in either direction between unevenly loaded positive and negative battery buses, you need an inverting dc transformer. One implementation is the symmetrical fly back converter shown in Figure 1 . The circuit can generate a negative output from a positive supply or a positive output from a negative supply.
When the circuit starts up, the substrate diode of the output FET bootstraps the output voltage to the point where synchronous switching takes over. When the gate-switching signal is symmetrical, the output voltage is approximately -95% of the input voltage, and the efficiency is greater than 80%. You can obtain voltage step-up or step-down by adjusting the switching ratio.
When the circuit starts up, the substrate diode of the output FET bootstraps the output voltage to the point where synchronous switching takes over. When the gate-switching signal is symmetrical, the output voltage is approximately -95% of the input voltage, and the efficiency is greater than 80%. You can obtain voltage step-up or step-down by adjusting the switching ratio.
Power inverter is Bidirectional Schematic
When I used the circuit between two 4V lead-acid batteries, a comparator adjusted the switch ratio to drive charge in the desired direction. The circuit automatically replaces charge drained from one battery to the other. In a short-battery-life application, the 2.5-mA standby current from each battery may be negligible. Using lower-gate-capacitance, FETs can reduce losses. Alternatively, you can add gates to the drive circuit to turn off both FETs whenever the battery voltages balance.
The minimum input voltage is a function of the gate thresholds of the FETs. The ±9V rating of the CMOS 555 timer sets the maximum voltage. My prototype supplies approximately 100 mA Link
Wednesday, September 10, 2014
AOC A240 WD LCD MONITOR SMPS and BACK LIGHT INVERTER SCHEMATIC
Power Supply_Sub-Power Supply & back-light Inverter Circuit Diagram_AOC Monitor A240WD
Saturday, August 16, 2014
6V to 220V inverter schematic
Circuit schematic above is one of the voltage inverter circuit, starting from 6-Volt input on the DC current into 220-volt AC output. For maximum output power up to 30W only, and is also very small voltage current. Input voltage plus the entrance on the transistor Q2 to provide the voltage at the collector and then go on Circumference transformer L1 and enter the base. Emitter will be merged ddengan voltage supplied L2 min. And LED1 is useful as an indicator of whether or not an inverter works especially on the transistor Q2.
Part List :
R1 = 1K R
R2 = 220R
C1 = 10nF
C2 = 100nF
C3 = 47nF
C4 = 0,22uF 400V
Q1 = 2N5551
Q2 = C5198
LED1 use Green Led
Transformer instruction :
The above is figure from a place plastic for copper wire wrapped around, you can also use the marks that have been unused transformer. For the above number are :
1 : Place for copper wire wrapped,with a diameter of 12mm x 10mm.
2 : Hole to place an iron or ferrite rod , with diameter 10mm. 
3 : Copper wire that has been rolled.
4 : Ferrite or iron rods which are mounted on the hole.
To coil L1 as much as 70 times, L2 200 times, And L3 as much as 1000 times.
L1 wire diameter 1mm
L2 wire diameter 0.8mm
L3 wire diameter 0.4 mm
4 : Ferrite or iron rods which are mounted on the hole.
To coil L1 as much as 70 times, L2 200 times, And L3 as much as 1000 times.
L1 wire diameter 1mm
L2 wire diameter 0.8mm
L3 wire diameter 0.4 mm
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