Circuit Projects

Circuit Projects/

12V Step-Down Dc Converter Using ADP2300 ADP2301

Using ADP2300 ADP2301 step-down dc dc regulators with integrated power MOSFET, can be designed a very simple DC DC voltage converter. Output voltage delivered by these circuits can be adjusted from 0.8 volts, up to 0.85xVin , with ±2% accuracy. The maximum output current that can be provided by ADP2 [...]

By | February 23rd, 2015|Categories: Converters Projects|Tags: |0 Comments

Voltage Limiter for Guitar Amplifiers

Guitar amplifiers using output devices such as the TDA7293 (100 W) or LM3886 (68 W) are surprisingly of ten damaged as a result of excessive supply voltage in the quiescent state. The transformers are of ten used so close to their specification that this problem can even be caused by a high mains in [...]

By | February 23rd, 2015|Categories: Automotive Projects|Tags: |0 Comments

Ground-free DVM Module Supply from 5 V

The majority of hand-held digital volt meters use an LCD screen and are powered from a nine volt battery. Inside is most probably an ICL7106 chip (or something compatible). This takes care of measuring the input and driving the LCD. This IC is very popular and can be found in other laboratory and ho [...]

By | October 31st, 2014|Categories: Uncategorized|Tags: |0 Comments

Condenser Mic Audio Amplifier

The compact, low-cost condenser mic audio amplifier described here provides good-quality audio of 0.5 watts at 4.5 volts. It can be used as part of intercoms, walkie-talkies, low-power transmitters, and packet radio receivers. Transistors T1 and T2 form the mic preamplifier. Resistor R1 provides the [...]

By | October 31st, 2014|Categories: Uncategorized|Tags: |0 Comments

1000 Watt Power Inverter Schematic

This 1000 watt power inverter circuit diagram based on MOSFET RF50N06.If you want more power then  add additional  MOSFET paralleled at RF50N06.This MOSFETS are  60 Volts and 50 Amps as rated.  It is necessary to connect  a  FUSE with the power line and always a LOAD ha [...]

By | October 29th, 2014|Categories: Uncategorized|Tags: |0 Comments

Electronic Project Simple But Digital Pressure Gauge

This automotive electronic project simple but digital pressure gauge circuit. Using an intersil ICL 7106 A/D converter chip and an LED display module, this gauge uses a Sensym Corp.Digital Pressure Gauge Circuit Diagram: Pressure transducer SXlOOpn (100 psi full scale) in a Wheatstone brid [...]

By | September 6th, 2014|Categories: Uncategorized|Tags: |0 Comments

Playback Amplifier For Cassette Deck

For some time now, there have been a number of tape cassette decks available at low prices from mail order businesses and electronics retailers. Such decks do not contain any electronics, of course. It is not easy to build a recording amplifier and the fairly complex magnetic biasing circuits, but a [...]

By | August 28th, 2014|Categories: Uncategorized|Tags: |0 Comments

1W BTL Audio Amplifier

The TDA8581(T) from Philips Semiconductors is a 1-watt Bridge Tied Load (BTL) audio power amplifier capable of delivering 1 watt output power into an 8-Wload at THD (total harmonic distortion) of 10% and using a 5V power supply. The schematic shown here combines the functional diagram of the TDA8551 [...]

By | August 28th, 2014|Categories: Uncategorized|Tags: |0 Comments

DC to AC Inverter with IC CD4047

This DC to AC inverter circuit work based on unstable multi vibrator does. In this circuit, IC CD4047 is chosen as a heart of unstable multivibrator, because this IC type gives a complementary output that has opposite phase to another ( pin 10 and 11 as seen in Figure 1), and has 50 % duty cycle tha [...]

By | August 28th, 2014|Categories: Uncategorized|Tags: |0 Comments

Model Railway Short-Circuit Beeper

Short circuits in the tracks, points or wiring are almost inevitable when building or operating a model railway. Although transformers for model systems must be protected against short circuits by built-in bimetallic switches, the response time of such switches is so long that is not possible to imm [...]

By | August 28th, 2014|Categories: Alarm and Security|Tags: |0 Comments