The motor driver circuit controlled by TL494 PWM IC is 36V 864W and its maximum over-power is 1800W. Lithium-ion (Li-ion) batteries are used for the power supply. Ten cells are used in series to ensure that the battery voltage is close to the nominal voltage of the motor, thus creating a source with a nominal…
The password electronic lock circuit PIC16F628A can store up to 128 users’ passwords. Users can change their passwords whenever they want. PIC16F628 and external Eeprom 24c08 are used to store these passwords. 2×16 LCD is used to display system messages. A piezoelectric buzzer that makes “beep sounds” is used to indicate the number pressed and…
A project made for the use of Scrap Laminator as a PCB laminator. The heating resistance control in the cylinder of the laminator is provided by BTA12 triac, LM339 op amp is used in the heat control circuit, MOC3052 is used for the track driver. A step motor is used to control the roll rotation…
I prepared a PCB for the Simple Switch Mode Power Supply Self Osc ATX Transformer that I shared before. It is compatible with the battery boxes of many drills. Apart from the PCB design, the tests were very challenging, I encountered interesting problems and saw strange events especially in electronics repair work. The problem of…
A simple battery charger using the LM317T three-terminal voltage regulator. The maximum output current of the LM317T integrated circuit, which is 1.2 A, is increased by the power transistor (BD912). The maximum output current of the charger is limited to approximately 5.3 A by the R4 resistor. Since there was no 0.55-OHM ready-made stone resistor,…
The aim is to make a simple and at the same time effective device that will count the number of people entering and exiting rooms with a single entrance door. The detection was carried out with Sharp GP2Y0A21YK sensors, based on the use of infrared distance sensors for security systems. These sensors work at short…
There are interesting projects but I don’t think most of them will be implemented. For this reason, I touched on PCB, Schematic designs. Especially power electronics studies can be useful for you and you can get inspiration. Some projects have also been made with large, detailed PCB designs. Sine controller for brushless motors. 24 cells…
For the circuit; It is called “Universal power control”. A circuit that reduces the brightness and therefore the power consumption of the energy saving lamp as a night lamp. It is not recommended to use simple dimmer circuits to change the brightness of these lamps. In the electronic ballast circuits used in energy saving lamps,…
I did the time test of the Advanced Battery Desulfurizer Circuit circuit that I shared before with a 12V 60A Car battery. I will keep the desulfurizer connected to the battery for 1 month but I wanted to share the first result, I got very good results in about 1 day of desulfurizer connection, it…
In applications for external starting of the washing machine engine, the biggest missing torque is the lack of power control, starting the engine by applying direct voltage only provides speed, and the engine stops at the slightest strain. There are circuits using the TDA1085C universal motor speed control integrated for full control. TDA1085 is an…