Category Archive: Electronics Projects

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Automatic Polarity Stabilizer Simple Relay Circuit

| 2020/07/02

Simple circuit with relay that directs output at the correct polarity when DC input is reversed. In reverse polarity protection, there is no output in the wrong connection. With this circuit, it gives output in all kinds of connections. In this connection there is a circuit that is inserted between the power supply and the…

0.2V-80V 0-10A Adjustable Switched Mode Power Supply

| 2020/07/02

The 0.2V-80V switched power supply built on TL494 Integration can be used in various devices, motors, battery, battery charging processes, etc. designed for. There is additional SMPS circuit with TNY267 integrated circuit for feeding elements such as TL494, Fan, Relay. Like many circuit elements used in the SMPS Project, this material was supplied from PC…

IR2153 Audio SMPS Circuits

| 2020/07/02

SMPS designs designed as IR2153 amplifier power source based on IR2153 Integration. The 300W version gives 2X44V DC. Circuits have Short circuit protection. IR2153 SMPS 300W Version: In general, IR2153 Supply voltage is taken over 220v filter capacitor, that is, over + 310V resistor or mosfet regulator. In these circuits, 18k 2w resistor is connected…

300W Amplifier Circuit MJ15003 MJ15004

| 2020/04/29

This is a very good amplifier suitable for driving compact speakers or bass or midrange PA systems. The great advantage of this connection is, on the one hand, the use of commonly available components, reasonable price and also the integration of all basic protections directly on the amplifier board, which significantly simplifies the construction of…

Development Board PIC 40 PIN

| 2020/04/28

PIC Development Board 40 is a PIC family MCU development kit in standard I / O format IDC-10 which is separated into PORTA, PORTB, PORTC, PORTD and PORTE. Using TextTools 40 pin as a MCU MCU, allowing to use both PIC 40,28,18 pins using an adapter Use electronic switch 4066 to automate programs without having…

SG3525 SMPS Laboratory Switching Power Supply 0-30 V 0-5 A

| 2020/04/27

SG3525 Adjustable SMPS 0-30V 0-5A Laboratory Switching Power Supply The SG3525A circuit was selected as the PWM modulator for controlling the switching power supply. It is a PWM modulator specially designed for control of switching power supplies. It has it two complementary outputs of the PWM signal, alternating one output can only range from 0…

UC3843 UC3845 Welding Inverter Circuit LiFePO4 Powered

| 2020/04/27

UC3845 LiFePO4 switch mode power supply charger. In order to simplify the connection, reduce the number of components and reduce the expected sources of problems, the following sections have been omitted around the UC3843 circuit. On pin number 2, overcurrent protection UC3843, a peak detector formed was launched components D10, C30 and R30 and pin…

TIP147 TIP142 Amplifier Circuit 200W Music Power

| 2020/04/27

Darlington Transistor TIP147 TIP142 Amplifier Circuit – Output power @ 4 ohm: 100 W; – Output power @ 8 ohms: 70 W; – Distortion (THD @ 1 kHz / 10 W): 0.02%; – S / N ratio: 115 dB; – Bandwidth: 3 Hz ÷ 200 kHz; – Sensitivity: 600 mVeff; – Supply voltage: 2×30 Vac;…

Adjustable Delay Circuit

| 2020/04/27

An uncomplicated layout that will perfectly test sift wherever necessary delay the application of any device. Delay time it can be adjusted from about 2 to 120 seconds. It may find use on for example, in a car, in the role of a system delaying the application of any receiver, e.g. The main element The…

TDA1517 2×6W Miniature Amplifier Circuit

| 2020/04/27

A full-fledged stereo power amplifier with the TDA1517 chip. It is powered by single voltage, achieves 2×6W output power at 4 Ω load. The whole is designed as a small module with dimensions of 30mm × 38mm, which “will fit anywhere”. The TDA1517 amplifier module can be used in self-made sound equipment or mounted in…