Tag: power electronic projects

Power supply circuits, SMPS Power supplies Switched DC DC Power supplies Inverter circuits Battery Battery Charging Circuits. Power electronics circuits, projects.

Adjustable voltage and current power supply LM337 LM317

| 2008/09/07

LM317 (positive voltage regulator) and LM337 (negative voltage regulator) output series-connected power transistors powered by the 5k and 20k potentiometer binary (stereo) type if you use the + and – output of the current and voltage settings set equal can Show some circuits and found that the output resistance of between 200 ~ 240 I…

Automatic 12V 24V Solar Panel Charger Circuit

| 2008/09/04

Solar Battery Charger Circuit MOSFET power transistor used in the MTP2955 charge and charge status LEDs can observe with 0:33 in the circuit diagram? TEXT trying to SEA could not find any explanation to account for this resistance is probably 0.6 v divided by current limitation I (to be current) Solar Panel Charger 12V 24V…

12V 24V Solar Panel Regulator LCD Display

| 2008/09/04

The Solar Panel Regulator measures the voltage or charging current on your solar cell and cuts off the energy of the panel to stop overcharging. It works with 12V or 24V systems. The screen with 3.5 digit liquid crystal display is driven by ICL7106. This integrated is used in many measuring instruments in the market,…

TL494 12V Flourescent Lamp Inverter Circuit L6574 Ballast Driver

| 2008/09/04

Inverter Circuit is based on TL494 pwm control IC. In addition, the inverter circuit is a good source for different projects, including the core and transformer winding information used in the L6574 ballast driver IC. 12V Fluorescent Lamp Inverter A standard 36/40W inverter circuit for powering Fluorescent Lamps from 12V DC. Ideal for camping, fault…

Simple Symmetric Power Supply Circuit with LM317T LM337T

| 2008/09/04

The power supply circuit has a simple design, but it is a useful circuit that you can use in various circuit tests using 2 LM317T Positive regulators and 2 LM337T Negative voltage regulators. The output voltage can be adjusted gradually with the commutator. In fact, the voltage range can be adjusted more precisely with the…

ATX Power Supply modified Tube Amplifier 700V SMPS

| 2008/09/03

I have made various modifications on computer power supplies, I shared most of them, and some of them were left unfinished. There are so many options to try, especially by changing the transformer (ei33) windings used, the voltage limit can be exceeded as in this application, an old p3 atx power supply was modified and…

Electronic Muscle Stimulation Circuit Switching IR2155 MC34063

| 2008/09/01

Electronic muscle training, muscle stimulation devices were once very popular, the biggest reason is the affordable price I shared a different muscle stimulation circuit made with pic 16f84 before, this circuit is the same as logic, there are more or less differences control integrated circuits mc34063 and ir2155 electronic muscle training circuit diagram , pcb,…

LM317T Adjustable Regulated Power Supply

| 2008/09/01

The circuit has 1 ampere power adjustable between 1.3…22 volts, normally lm317t 1.2..32 volt adjustable can be used for some reason. If r2 is canceled and 5k is used instead of 2k trimpot, a simple 32 volt adjustable power supply circuit can be used to operate low current circuits. Do not use without a cooler.…

Backup Battery Control Circuit

| 2008/09/01

For control in the backup battery controller circuit, L4949, 4093B integrateds are used, the status of the main battery is checked and when necessary, the backup battery is activated via the 80 amp relay – Control Circuit for L4949 4093B and Backup Battery 12/24V Auxiliary Battery Controller It is common practice to add a second…

3A 5V Switching Regulator

| 2008/08/26

The regulator circuit with mosfet has a simple structure and can provide 5v 3 amps at the output with 24v input voltage. The author warned that the input voltage should not be below 11v. Switching regulator with 5V 3A mosfet Super simple regulator works very well but is it possible to improve it? Maybe with…