Showing posts with label dc. Show all posts
Showing posts with label dc. Show all posts

Thursday, October 16, 2014

5V 2A Dc Converter Using LT3980

Using LT3980 manufactured by Linear Technology can be designed a very simple 5 volts dc converter circuit.

5V 2A Dc Converter Circuit Diagram



The LT3980 has an adjustable frequency from 100kHz to 2.4MHz and accepts input voltages up to 58V . The transient voltage of the LT3980 is around 80 volts . The maximum output current which can be delivered by the LT3980 monolithic buck switching regulator is around 2 Amps .

Main features of the LT3980 monolithic buck switching regulator are : wide input range from 3.6V to 58V , overvoltage lockout protects circuits through 80V transients , 2A Maximum Output Current , low ripple (<15mvp-p) burst mode, aadjustable switching frequency: 100khz to 2.4mhz ,low shutdown current: iq <1μa, thermal protection, soft-start capability 

Friday, September 12, 2014

DC to AC with NE 555


This is a inverter schema by using this schema you can get 230v current.If your an under age one be careful when you deal with this.Always try to get the assistance of an elder.If there was a fault we cant get the responsibility of it.



Tuesday, September 9, 2014

Simle DC to AC Inverter by IC 555

This be basic AC inverter Circuit. Convenient for the initiator who have to is extremely fond of something experience. Because of use IC 555 highly popular, perform produce the frequency ,then enlarge with transistor NPN and PNP number TIP41 and TIP42 drive the coil transformer. Get by can pay Voltage output about 120V to 230V at frequency 50Hz. By have R4 perform control the frequency and should use. Voltage supply about 5V to 15V the detail sees in schema picture sir.

Simple DC to AC Inverter by IC 555 Circuit Diagram



Monday, September 8, 2014

500W Inverter 12V DC to 220V AC

This is inexpensive inverter schema which able to convert 12V DC become 220V AC. IC CD4047 is use to generate the square wave of 50hz and amplify the current and then amplify the voltage by using the step transformer.
500W

How to calculate transformer rating

The basic formula is P=VI and between input output of the transformer we have Power input = Power output

For example if we want a 220W output at 220V then we need 1A at the output. Then at the input we must have at least 18.3V at 12V because: 12V*18.3 = 220v*1

So you have to wind the step up transformer 12v to 220v but input winding must be capable to bear 20A.

Sunday, September 7, 2014

DC to DC AC Inverter Wiring diagram Schematic

This DC-to-DC AC Inverter Circuit Diagram uses no special components such as the torodial transformer used in many inverters. Cost is kept low with the use of cheap, readily available components. Essentially, it is a power amplifier driven by an asta-ble multivibrator. The frequency is around 1200 Hz which most 50/60 Hz power transformers handle well without too much loss. 

Increasing the value of capacitors Cl and C2 will lower the frequency if any trouble is experienced. However, rectifier filtering capacitors required are considerably smaller at the higher operating frequency. The two 2N3055 transistor should be mounted on an adequately sized heatsink. The transformer should be rated ac-cordingto the amount of output power required allowing for conversion efficiency of approximately 60%.


DC-to-DC AC Inverter Circuit Diagram

DC-to-DC

Saturday, August 23, 2014

230 V AC To 400 V DC Power Supply Wiring diagram Schematic


Description

               A lot of students are who dont know how to convert 230 volt AC to 400 DC. So today i am published   230 V AC to 400 V DC schema diagram on my blog. Working principle of this schema diagram is very simple. You already knew the working principle of a bridge rectifier. This schema is same as bridge rectifier and the working principle is also same. The fuse is used to protect the schema, if the current is greater than 1 A.

Parts List

Component No:Value
F11 A
B1IN4007 
C1470MF/450V 
V1230 V AC 

Friday, August 22, 2014

zBot 10 A Power Stage for DC Motor Wiring diagram Schematic

zBot :10-A Power Stage for DC Motor Circuit Diagram . If you look at the chassis of the zBot vehicle1, you’ll find two parts requiring intelligent control: the steering servo and the DC motor. The so called H-bridge is the normal schema for electronic control of revolution speed and direction. The DC motor of a Tamiya car is powerful enough to propel zBot at up to 20 miles per hour.
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The motor then consumes more than 10 A, so we choose high-current power MOSFETs for the driver stage. There are lots of different devices to choose from. The MOSFET we require has to supply the maximum motor current and, importantly, it has to be switched with gate voltages of about 5 V. In this case, the microcontroller switches the power stage (‘low side’) directly. For high side driving level shifters are necessary. The schematic of the H-bridge power stage shows a few inverters, NAND gates and two tri-stateable drivers. These logic functions are very important as the easier way, i.e.., directly controlling all four MOSFET has a fatal disadvantage.

zBot :10-A Power Stage for DC Motor Circuit Diagram

zBot


In case of a software crash it could happen that two ore more MOSFETs are switched on incor-rectly for exam-ple, T4 and T7. In that case, the current through the transistors is limited by the internal resistors of the MOSFETs (about 10 mO) only. Such a fatal error would destroy the MOSFETs. The logic functions configured here effectively avoid illegal states.To control the DC motor, three signals are needed: DIR, PWM and STOP. DIR controls the direction of the motor revolution, PWM the speed, and STOP brakes the motor.

The software module for the DC motor is called dcm.c.(070172-I) The complete document called Zbot  the Robot Experimental Platform is available for free downloading from the Elektor Electronics website. The file number is 070172-11.zip (July/August 2007).

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