Isolated Feedback SMPS 5VDC 1.5A

Isolated Feedback SMPS 5VDC 1.5A
Above schematic design is an isolated feedback SMPS (switched mode power supply) circuit using the isolated feedback capabilities of the TL3103 for both current and voltage sensing. This powersupply is powered from the AC mains and has an output of 5V DC at 1.5A. Both output voltage and current are sensed and the error voltages are applied to the error amplifiers of the TL594 PWM control IC. The 24V transformer has the output about 35V at the 1000uF filter

12V / 10A Switching Power Supply

12V / 10A Switching Power Supply
This is the circuit diagram of 12V / 10A switching power supply. The circuit, shown in the schematic, provides 12 volts, at 10 amperes, maximum, using a discrete transistor regulator with an op-amp functioning as a comparator in the feedback circuit. The supply was constructed in 1984 and is variable frequency, as opposed to the pulse width modulator (PWM) controllers used today. The transformer used in this design diagram was for 110-120VAC home electric main, you should change the

5V 10A 50W Offline Switching Power Supply

5V 10A 50W Offline Switching Power Supply
This is the switching power supply circuit diagram with 50W power output with a 5V voltage 10A current. It is a flyback converter operating in the continuous mode. The circuit features a primary side and secondary side controller will full-protection from fault conditions such as overcurrent. (more…)

Bipolar +/- 15V and 5V from Car Battery supply

Bipolar +/- 15V and 5V from Car Battery supply
This DC to DC Converter use Max 541 from Maxim, IC1 is a switching regulator that generates a 45-kHz signal that drives the gate of MOSFET Q1 BUZ71A from Motorolla. The source of this power supply comes from a 12V car battery voltage. This DC to DC converter have an output  +-15V and 5V. (more…)

Simple Switching Power Supply 15 Watt

Simple Switching Power Supply 15 Watt
This Simple switching power supply for 15 Watt can be used to power any load up to 15 ... 20 watts and has smaller dimensions than a similar, but with the step-down transformer, operating at a frequency of 50 Hz. (more…)

5V Switch Mode Power Supply using LM2674

5V Switch Mode Power Supply using LM2674
In the typical power supply is used in chip LM2674 company National Semiconductor , for many years engaged in manufacturing and designing components for the pulse transformers. LM2674 can be used instead of a chip LM2671 . By choosing different versions of chips, you can collect the converter with a constant (3.3, 5 or 12V) or with an adjustable output voltage. The above scheme gives a current of 500 mA. (more…)