Showing posts with label volt. Show all posts
Showing posts with label volt. Show all posts
Tuesday, October 28, 2014
9 to 5 Volt DC Converter
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| 9 to -5 Volt DC Converter |
By using IC NE555, which causes wave clear the sector output allows the voltage nearly 6V after the signify on the output from a pulse plus C2 acts charge through D1 to ground and if the pulse harmful capacitor C2 desire discharge. through diode D1 and capacitor C3 to chage so as to negative voltage is about-6V, but being aloof to the run to of absent-5V zener diode ZD1 current output will happen approximately 12mA. To test the circuit or else circuits with the purpose of may well need various circuits, but we take refusal fire-5V power supply-5V, but if the battery 9V circuit can allow us to avail yourself of the volt-5V being desired.
Thursday, October 23, 2014
Volt meters ampere meter with PIC
Volt meters & ampere meter with PIC can be used to measure voltage and current simultaneously. The series of volt meters & ampere meter with PIC16F876A PIC is used as a data processor voltage and current are measured.
This circuit uses the viewer in the form of 16 × 2 LCD used for the data menmpilkan voltage and current measurements. In the article volt meter and ampere meter with PIC are discussed kerannya limited to devices only. More detail can be seen from the image sequence volt meter and ampere meter with PIC below.
The images of Volt Meter & Ampere Meter With PIC Circuit
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| Volt meters & ampere meter with PIC |
Friday, October 17, 2014
230 Volt AC To Inverter Switching Circuit Diagram
Before three weeks i am introduced inverter circuit diagram but the circuit not included ac to inverter switching part so today i introducing a 230 Volt Ac to inverer switching circuit diagram .
Circuit showing a inverter switching . Here i have used bc 558 ,BC 548 and a relay for making this circuit . 230 volt connected to the base of the transistor Q1.When the power is ON positive volt coming to the base of the transistor so the relay circuit is open and load working in 230 V AC .When the power is OFF ground voltage coming to the base of the transistor so the Base of the Q2 is positive there for the relay circuit closed and load working in inverter input .Part list and applications are showing below.
Part List
| Component No: | Value | Usage |
| R1 | 100KΩ | Emitter Load |
| R2 | 10K Ω | Base Biasing |
| R3 | 180KΩ | Current Limiting |
| Q1 | BC558 | Switching |
| Q2 | BC548 | Switching |
| D1 | IN4007 | Relay Balancing |
| RL1 | 12 V | Inverter Switching |
Applications
* Inverter Switching
* AC Switching
Saturday, October 4, 2014
1 5 volt Mobile Phone Travel Charger
Here is an ideal mobile charger application 1.5 volt pen beef to allegation adaptable buzz while traveling. It can furnish corpuscle buzz array three or four times in places area AC ability is not available.
Most of the Adaptable buzz batteries are rated at 3.6 V/500 mA. A distinct pen bake corpuscle can accommodate 1.5 volts and 1.5 Amps current. So if four pen beef are affiliated serially, it will anatomy a array backpack with 6 volt and 1.5 Amps current. When ability is activated to the ambit through S1, transistor T1 conducts and Green LED lights.
When T1 conducts T2 additionally conducts back its abject becomes negative. Charging accepted flows from the beneficiary of T1. To abate the charging voltage to 4.7 volts, Zener diode ZD is used. The achievement gives 20 mA accepted for apathetic charging. If added accepted is appropriate for fast charging, abate the amount of R4 to 47 ohms so that 80 mA accepted will be available. Points A and B are acclimated to affix the charger with the adaptable phone. Use acceptable pins for this and affix with actual polarity.
Thursday, October 2, 2014
Simple 12 Volt Lamp Dimmer Circuit
This is a simple design schematic for lamp. This circuit based on 555 IC that’s used to unstable oscillator. 12 volt / 2 amp lamp dimmer that can be used to dim a standard 25 watt automobile brake or backup bulb by controlling the duty cycle of 555 IC. This is a picture of the schematic;
The operation of this circuit is when the wiper of the potentiometer is at the uppermost position, the capacitor will charge quickly through both 1K resistors and the diode, producing a short positive interval and long negative interval which dims the lamp to near darkness. When the potentiometer wiper is at the lowermost position, the capacitor will charge through both 1K resistors and the 50K potentiometer and discharge through the lower 1K resistor, producing a long positive interval and short negative interval which brightens the lamp to near full intensity. The duty cycle of the 200 Hz square wave can be varied from approximately 5% to 95%. The two circuits below illustrate connecting the lamp to either the positive or negative side of the supply.
The operation of this circuit is when the wiper of the potentiometer is at the uppermost position, the capacitor will charge quickly through both 1K resistors and the diode, producing a short positive interval and long negative interval which dims the lamp to near darkness. When the potentiometer wiper is at the lowermost position, the capacitor will charge through both 1K resistors and the 50K potentiometer and discharge through the lower 1K resistor, producing a long positive interval and short negative interval which brightens the lamp to near full intensity. The duty cycle of the 200 Hz square wave can be varied from approximately 5% to 95%. The two circuits below illustrate connecting the lamp to either the positive or negative side of the supply.
Tuesday, September 16, 2014
Regulated 12 Volt Power Supply
A basic regulated 12 Volt power supply. Regulated 12 Volt Power Supply Circuit diagram : ![]()
Note :
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This circuit above uses a 13 volt zener diode, D2 which provides the voltage regulation. Aprroximately 0.7 Volts are dropped across the transistors b-e junction, leaving a higher current 12.3 Volt output supply. This circuit can supply loads of up to 500 mA. This circuit is also known as an amplified zener circuit.
Friday, September 5, 2014
Simple Dual Voltage Power Supply 12 Volt
This is the simple schema diagram of Dual Voltage Power Supply. It is used for Misc… application. This schema is called regulated power supply. For this reason the main component of this schema is Regulator IC. It also needs few components to built. The regulator 7812 is the positive voltage regulator and 7912 is the negative voltage regulator.
Simple Dual Voltage Power Supply 12 Volt Circuit Diagram
You can also use 7809 for 9 volt positive power supply and 7909 for negative voltage power supply. It regulates voltage from 24Volt to 12 Volt (DC). The transformer input is 110Volt to 220Volt (AC) and the output must be between 12Volt to 24Volt (AC) and current must be 500mA. In this schema some capacitors are used as a filter for removing repole.
Wednesday, September 3, 2014
6 to 12 Volt 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.
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Thursday, August 28, 2014
10 16 Volt Stereo 2 x 5 5 power amplifier
This amplifier circuit or with it based on ic KA2210 main amplifier, audio amplifier circuit should disupplay minimum of 10 Volt and up to 16 volts. Power output is 2 x 5.5 W stereo amplifier att. By using this amplifier you can listen to the strains of songs from mp3 player, iPod, etc.
This is schematic diagram
Part List
R1 = 4.7R
R2 = 4.7R
C1 = 1uF
C2 = 100uF
C3 = 47uF
C4 = 100uF
C5 = 0.1uF
C6 = 1000uFC7 = 1uF
C8 = 100uF
C9 = 47uF
C10 = 100uF
C11 = 0.1uF
C12 = 1000uFIC = KA2210
Saturday, August 23, 2014
14 Volt Battery Charger Circuit
This Circuit have output voltage 14 volt with current maximum 4A . Can be use on nicad battery and accu , wet and dry . But the accu must be 12 Volt and have current 4A or higher. The current fillter voltage build of IC CA3140 or LM324 . You can which two IC. From the AC voltage will be lowered by trafo and rectified by diode .You can use diode up to 4A, this voltage to be supply for circuit.
See this 14 Volt Battery charger schematic circuit below :
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| Click to view Enlarge |
Friday, August 22, 2014
Stereo 9 Volt power amplifier circuit
Here I will explain about the necessary voltage and power amplifier output. The voltage should have at least approximately 9Volt 30Volt voltage and maximum voltage on the DC current. For maximum output of 2 X 2Watt with impedance 8-16 ohm. Because this amplifier circuit using ic and ic is used have the equation, so that if used different ic, then the required output voltage and also differ depending ic respectively.
Part List :
Resistor
R1 = 1M
R2 = 1M
R3 = 1K
R4 = 1K
R5 = 100K
R6 = 100K
R7 = 1R
R8 = 1R
Capacitor
C1 = 1uF
C2 = 220uF
C3 = 1uF
C4 = 100uF
C5 = 5uF
C6 = 5uF
C7 = 0.1uF
C8 = 220uF
C9 = 220uF
C10 = 0.1uF
IC
U1 = ULN2274B , ULN2277 , ULN2278B
Friday, August 15, 2014
schema INVERTER 12 VOLT UNTUK SOLDER
Here is a simple 12 V inverter for application a baby soldering adamant (25W, 35W, etc) in the absence of mains supply. It uses eight transistors and a few resistors and capacitors. Transistors T1 and T2 (each BC547) anatomy an astable multivibrator that produces 50Hz signal. The commutual outputs from the collectors of transistors T1 and T2 are fed to pnp Darlington disciplinarian stages formed by transistor pairs T3-T5 and T4-T6 (utilising BC558 and BD140). The outputs from the drivers are fed to transistors T7 and T8 (each 2N3055) affiliated for push-pull operation. Use acceptable heat-sinks for transistors T5 through T8.
230V AC primary to 12V-0-12V, 4.5A accessory agent (X1) is used. The centre-tapped terminal of the accessory of the agent is affiliated to the array (12V, 7Ah), while the added two terminals of the accessory are affiliated to the collectors of ability transistors T7 and T8, respectively.
When you ability the ambit application about-face S1, agent X1 produces 230V AC at its primary terminal. This voltage can be acclimated to calefaction your soldering iron. Assemble the ambit on a accepted purpose PCB and abode in a acceptable cabinet. Connect the array and agent with acceptable current-carrying wires. On the advanced console of the box, fit ability about-face S1 and a 3-pin atrium for abutting the soldering iron.
230V AC primary to 12V-0-12V, 4.5A accessory agent (X1) is used. The centre-tapped terminal of the accessory of the agent is affiliated to the array (12V, 7Ah), while the added two terminals of the accessory are affiliated to the collectors of ability transistors T7 and T8, respectively.
When you ability the ambit application about-face S1, agent X1 produces 230V AC at its primary terminal. This voltage can be acclimated to calefaction your soldering iron. Assemble the ambit on a accepted purpose PCB and abode in a acceptable cabinet. Connect the array and agent with acceptable current-carrying wires. On the advanced console of the box, fit ability about-face S1 and a 3-pin atrium for abutting the soldering iron.
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