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Regulated dual power supply circuit – Circuit Schematic
Regulated dual power supply circuit
The circuit given here is of a regulated dual power supply that provides +12V and -12V from the AC mains. A power supply like this is a very essential tool on t...
RC filters-operation-circuit-diagram – Circuit Schematic
RC filters-operation-circuit-diagram
The drawbacks of pi-filters are the comparatively larger cost, more weight, bigger size and external field developed by the series inductor. However, these draw...
High voltage generator circuit – Circuit Schematic
High voltage generator circuit
First of all let me remind you that this circuit is a very dangerous one. The output voltage of this circuit is in Kilo volts and it can seriously injure you or...
Fuse with status indicator – Circuit Schematic
Fuse with status indicator
Here is the circuit diagram of a fuse that has an automatic status indicator. This circuit can be added to circuit that operates from 12V DC. As long as the fus...
Dual power supply using L165 – Circuit Schematic
Dual power supply using L165
This dual power supply is based on the L165 power operational amplifier from SGS-Thomson Micro electronics. The IC L165 can easily deliver up to 3. 5A of curren...
Dual Adjustable/Variable Power Supply Circuit Using LM 317 & LM337 – Circuit Schematic
Dual Adjustable/Variable Power Supply Circuit Using LM 317 & LM337
Dual adjustable power supply circuit with diagram using IC LM 317 and LM 337. This variable power supply circuit has a range of 1.2 Volts to 30 Volts.....
5V transformer less power supply – Circuit Schematic
5V transformer less power supply
Here is the circuit diagram of a 5V transformer less power supply using minimum components. The working of this circuit is quite simple. Resistor R1 does the jo...
5V power supply with overvoltage protection – Circuit Schematic
5V power supply with overvoltage protection
For circuits using TTL ICs the supply voltage is a great concern and a slight increase in supply from the rated 5V may damage the IC. Using fuses alone does not...
5V power supply using 7805 IC with circuit diagram – Circuit Schematic
5V power supply using 7805 IC with circuit diagram
A 5V power supply using IC 7805 is designed and explained with a neat circuit diagram.....
1.3V Power supply – Circuit Schematic
1.3V Power supply
This 1. 3V power supply can be used as replacement for the 1. 3V Mercury Cell in any circuit. When the input 5V is given to the circuit, the voltage drop across...
Regulated dual power supply circuit from single battery source – Circuit Schematic
Regulated dual power supply circuit from single battery source
How to create dual power supply unit using single battery for your lab prupose Dual voltage power supplies are required particularly for op amp experiments and ...
diode bridge rectifier circuits – Circuit Schematic
diode bridge rectifier circuits
What is a rectifier A rectifier is an electronic circuit that converts AC voltage to DC voltage. It can be implemented using acapacitor diodecombination. The un...
Current and Variable Voltage Power Supply – Circuit Schematic
Current and Variable Voltage Power Supply
Another adjustment of application opamps to adapt a ability accumulation is apparent below. The ability agent requires an added ambagious to accumulation the op...
STABILIZER POWER SUPPLY 0-30 VDC CIRCUIT – Circuit Schematic
STABILIZER POWER SUPPLY 0-30 VDC CIRCUIT
This is a aerial affection ability accumulation with a continuously capricious stabilised achievement adjustable at any amount amid 0 and 30VDC. The ambit addit...
AC to DC 90 Watt Switching Power Adaptor PCB – Circuit Schematic
AC to DC 90 Watt Switching Power Adaptor PCB
AC to DC switching power adaptor circuit with maximum output power of 90W. Switching power supply is built using a high voltage power switching regulator IC MC3...
13.8V 40A Switching Power Supply By LM3524 and LM324 PCB – Circuit Schematic
13.8V 40A Switching Power Supply By LM3524 and LM324 PCB
This article was originally published (in a slightly modified form) in the QST magazine, December 1998 and January 1999, and in the Radio Amateur`s Handbook, 19...
Protection Circuit For Electrical Appliances From Power Supply Variations PCB – Circuit Schematic
Protection Circuit For Electrical Appliances From Power Supply Variations PCB
Here is a very low-cost protection circuit to save your electrically operated home appliances, such as TV, DVD player, refrigerator, and other instruments durin...
UPS Circuit For Cordless Phones PCB – Circuit Schematic
UPS Circuit For Cordless Phones PCB
Circuit This circuit diagram of UPS is designed to use with a cordless telephones that cannot be operated during power failure. Since the ups is only meant for ...
USB Power Booster Circuit PCB – Circuit Schematic
USB Power Booster Circuit PCB
Most of the peripherals that interface with PC uses USB port. The computers power supply circuit of SMPS will be designed to maintain constant power to all comp...
Electronic Fuse for DC Short Circuit Protection – Circuit Schematic
Electronic Fuse for DC Short Circuit Protection
This circuit will protect your power supply or battery. The electric current will stopped by relay when electric current short occured, Relays must be chosen wi...