Showing posts with label volt. Show all posts
Showing posts with label volt. Show all posts
Saturday, November 1, 2014
120 Volt 4 LED Light Circuit
This circuit uses can exist used in the same way as a night light. It uses a 120 V Mains to power the circuit. plant like a charm!
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| Example |
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| Circuit Schematic |
Parts
4x - White LEDs
1x - 9.1K 5watt Resistor
1x - 1N4007
1x - 180or220uF 25v cap
1x - 1Meg 1/2watt Resistor
1x - 100mA fuse
1x - Enclosure
If the ac supply is 220 volts,then which resistir should replace and by which one, 220v is twice of 110v so doubles the value due to the voltage work, try to replace 9k1 with 22k-100k and capasitor voltage 160v.
Tuesday, April 30, 2013
1 5 35 Volt DC Regulated Power Supply
Here is the circuit diagram of regulated power supply. It is a small power supply that provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 ampere. This circuit is ready to use, you just need to add a suitable transformer. This circuit is thermal overload protected because the current limiter and thermal overload protection are included in the IC.
Picture of the circuit:
Picture of the circuit:
1A Regulated Power Supply Circuit Schematic
Circuit diagram:
1A Regulated Power Supply Circuit Diagram
Transformer selection chart:
Transformer selection Guide-Table For Power Supply
Parts:
IC = LM317
P1 = 4.7K
R1 = 120R
C1 = 100nF - 63V
C2 = 1uF - 35V
C3 = 10uF - 35V
C4 = 2200uF - 35V
D1-D4 = 1N4007
Features:
IC = LM317
P1 = 4.7K
R1 = 120R
C1 = 100nF - 63V
C2 = 1uF - 35V
C3 = 10uF - 35V
C4 = 2200uF - 35V
D1-D4 = 1N4007
Features:
- Just add a suitable transformer (see table)
- Great to power your projects and save money on batteries
- Suitable as an adjustable power supply for experiments
- Control DC motors, low voltage light bulbs, …
- Preset any voltage between 1.5 and 35V
- Very low ripple (80dB rejection)
- Short-circuit, thermal and overload protection
- Max input voltage : 28VAC or 40VDC
- Max dissipation : 15W (with heatsink)
- Dimensions : 52x52mm (2.1” x 2.1”)
- Input Voltage = 40Vdc max Transformer
- Output Voltage = 1.5V to 35Vdc
- Output Current = 1.5 Amps max.
- Power Dissipation = 15W max (cooled)
- It has not to be cooled if used for small powers. 28 Volt AC max is allowed for the input voltage.
Tuesday, April 9, 2013
15 Volt Stabilizer circuit
In this time I will share about the circuit voltage stablizer or stabilization using IC 7815 and 7915, with a minimum of 17.5V to 50V input. The output of this circuit will issue with the current 15V voltage in accordance with the input. Stabilizer is also equipped with reinforcement by transistor 2N3055 and MJ2955.15V stabilizer schematic
Part List :
D1 - D4 use 3A diode
C1 - C2 use Capacitor Elco with capacity 4700uF - 10000uF 80V
C3 - C6 use Capacitor Elco with capacity 470uF - 2200uF 50V
Q1 2N3055
Q2 MJ2955
IC 7815 and 7915
Saturday, April 6, 2013
5 VOLT MOMENTARY OPERATION TOUCH SWITCH
This simple circuit uses a single IC to form a nice touch switch circuit. A single transistor forms the remote active switch sensor. Multiple switches can be wired in parallel. The switch circuit can be located about 500 feet from the control circuit.
Read More..
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9 20 Volt amplifier circuit
For this time I will post the scheme following an amplifier of the IC KA2203, SN16975, TBA820, UL1482P. Which has 4 Watt power output with 4 Ohm impedance. At least 8 Volt supply voltage and a maximum of 20 volts.Part List
R1 = 100K
R2 = 56R
R3 = 56R
Use 1/2 W resistor
C1 = 47uF
C2 = 100uFC3 = 100uF
C4 = 470uF
C5 = 470pF
C6 = 0.22uF
C7 = 100uF
U1 = KA2203 , SN16975, TBA820, UL1482P
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