Bought some Dc voltage converters from AliExpress in hopes of converting 12v to 5v or the other way around. Is there some common reason none of them are working? : r/AskElectronics
RCNUN 50-90V 60V 72V to 12V 8A 100W Isolated DC DC Buck Converter 72 Volt to 12 Volt Lithium Battery BMS Power Supply - AliExpress
XL4016 PWM 4-38V To 1.25-36V Adjustable Step-Down Board Module DC-DC Converter - AliExpress
MEAN WELL SD-15A-12 9.2~18V DC to 12V DC 1.25A 15W DC-DC Converter Enclosed type Switching Power Supply 12V to 12V Converter - AliExpress
DC 9V 12V 24V 36V 48V 72V 84V 120V to 5V 12V 3A Step Down Module Power Supply DC DC converter Non-isolated Buck Converter - AliExpress
DC-DC Converter DC8-35V to DC0.6-35V Auto Boost Buck Power Supply Module 190W Solar Charge Constant Current Power Suppy Board - AliExpress
Free 3D file StepUp DC-DC Converter 20A Aliexpress Case Box 📦・3D printing template to download・Cults
Free 3D file StepUp DC-DC Converter 20A Aliexpress Case Box 📦・3D printing template to download・Cults
DC 9V 12V 24V 36V 48V 72V 84V 120V to 5V 3A / 2A Step Down Module Power Supply DC DC Converter Buck Converter Step Up Converte - AliExpress
Yixinyou Adjustable Pressure Rbq High-power Isolation Dc-dc Voltage Converter Module 48v-60v To 9.8v50a(6.3) - Inverters & Converters - AliExpress
DC-DC DC 5-40V to 1.2-36V 8A/100W 12A Max Step Down Buck Converter Power Supply Module Voltage Regulator for Car - AliExpress
DC DC Step Up Boost Converter Power Supply Module DC 3-4.5V to ±5V/6V/9V/12V/15V/24V Positive Negative Voltage Converter - AliExpress
Dc Step Converter 12v 24v 48v | 48v 12v Dc Buck Converter | 12v 48v Dcdc Converter - Inverters & Converters - Aliexpress
Isolated Dc Dc Buck Converter Module | Dc Dc Converter Adjustable Isolated - Dc-dc - Aliexpress
Amazon.com: KNACRO DC-DC Converter DC 12V (9V-14V) Step Up to 15V 4A 60W Power Supply (in DC 9-14V, Out 15V 4A) : Electronics
AC DC 3.3V 700MA 5V 700mA 12V 400MA 3.5W Precision Buck Converter AC 2 – Aideepen
PQC75-O Series | Isolated
DC-DC Boost Converter 12V 24V to 80V-650V 100V 200V 300V 400V 600V linear adjustable voltage regulator Power supply PSU Module - AliExpress
DC Isolation Converter 9-150V to 19V Buck Module 24V 36V 48V 60V 72V 80V 100V 110V to 19V Step-down Safe Isolation - AliExpress
Hot！dc-dc Converter 20a 1200w Step Up Step Down Buck Boost Module 8-60v To 12-83v - Inverters & Converters - AliExpress
OPEN-SMART Mini DC 7~28V to DC 5V Step-down Converter + Adjustable Buck Converter Power Suppl… | Electronic circuit projects, Circuit projects, Computer accessories
Free 3D file StepUp DC-DC Converter 20A Aliexpress Case Box 📦・3D printing template to download・Cults
3.3V 5V 9V 12V 3A 5A Mini560 Pro Step Down DC-DC Converter Voltage Regulator Buck Stabilized Power Supply Module Replace LM2596 - AliExpress
Cn6009 Dc-dc Boost Power Regulator Module Output Adjustable 5v/ 6/9/12v Liters 24v Current 4a Inverters Converters - Inverters & Converters - AliExpress
Basic Design Guide for DC/DC Converters | Redeweb
Power Supply Module | Converter | Replacement Parts - Dc-dc Power Supply Module 5w Dc - Aliexpress
