Bidalketa estandarra doan $9.9tik gorako eskaeretan
Itzulketa Politika
Erositako elementuak itzuli daitezke 40 egunetan jasotako datatik aurrera. Pertsonalizatutako elementuak ezin dira itzuli edo aldatu. E-opari txartelarekin erositako elementuak trukatzeko soilik dira; itzulketak ez dira aplikagarri.
Opari Doan
Ongi etorri Roymallera, departamentu-dendako opari premiumak erosteko zure webgune profesionalera. Zure babesa oso estimatzen dugu eta eskerrak emateko, zure erosketetan zirrara gehigarria gehitu nahi dugu. Gurekin erosiz gero, zure bizimodua hobetzen duten kalitate handiko produktuak ez ezik, zure eskaera bakoitzarekin opari doan esklusiboa ere jasoko duzu. Prest gure bilduma arakatzeko eta zure opari perfektua aurkitzen? Arakatu gure departamentu-dendako elementuen hautapena, egin zure eskaera eta itxaron zure opari doana zure erosketarekin batera iristeko zirrara.
Bidalketa Politika
Zure eskaerak jaso ondoren, elementuak zuregana eramateko lan egingo dugu eta seguru iristen direla ziurtatuko dugu. Bidalketaren xehetasunak zure baieztapen mezu elektronikoan emango dira.Kasu gehienetan, eskaerak 2 egunetan prozesatzen dira.Baldintza berezietan, honela atzeratuko da: Larunbatean, igandean edo jaiegunetan eskaera egiten baduzu, 2 egun atzeratuko da..Normalean, 5-7 lan egun behar dira (astelehenetik ostiralera) hegaldiaren atzerapena edo beste ingurumen faktore batzuk eragin gabe..Gure bidalketa zerbitzua mundu osoan zehar delako, bidalketa denborak zure kokalekuaren araberakoak izango dira, beraz, zenbait aldiz beharko dituzu eta itxaron pazientziaz urrutiko barrutietan edo herrialdeetan bazaude.
1. Itzulketa eta Truke Politika
roymall.comtik erositako elementuak bakarrik onartzen ditugu. Gure tokiko banatzaileetatik edo beste saltzaile batzuetatik erosten baduzu, ezin dituzu gure aldetik itzuli.Azken salmentako elementuak edo opari doanak ez dira onargarriak itzulketarako.Itzulketarako hautagaia izan dadin, zure elementua erabili gabe eta jaso zeneko egoera berean egon behar du. Gainera, jatorrizko paketean egon behar du.Gurengandik itzulketa argibideak jaso ondoren, mesedez, bildu zure itzulitako elementuak eta utzi zure paketea posta bulego lokalean edo beste bidalketa batzuetan. Zure itzulketako edo trukaketa elementua prozesatuko dugu 3-5 lan egunetan jasotakoan. Itzulketa prozesatu eta zure ordainketa metodo originalean kreditua automatikoki emango da.Ezin dira itzulketak edo trukeak onartu produktua pertsonalizatuta sortu bada, neurri pertsonalizatuak, kolore pertsonalizatuak edo inprimatze pertsonalizatuak barne.Laguntza gehiago behar duzu, jarri gurekin harremanetan. service@roymall.com edo Whatsapp: +447549870296
2.Itzulketa Politika
Itzulitako paketea jasota eta egiaztatuta, itzulpen osoa edo dendako kredituaren %100 jasoko duzu. Itzulketa prozesatu eta zure ordainketa metodo originalean kreditua automatikoki emango da.Kontuan izan bidalketa kostuak eta edozein zerga edo kuota ez direla itzulgarriak. Bidalketa kostu gehigarriak ez dira itzulgarriak paketea bidali ondoren. Zuk ordaindu behar dituzu kuota hauek eta ezin ditugu bertan behera utzi edo itzuli, eskaera guregana itzuli arren.Behin itzulitako elementua jaso eta berretsi ondoren, mezu elektroniko bat bidaliko dizugu zure itzulitako elementua jaso dugula jakinarazteko. Zure itzulketaren onarpena edo ukapena ere jakinaraziko dizugu.Itzulketa prozesuari buruzko arazoren bat baduzu, jarri gurekin harremanetan. service@roymall.com edo Whatsapp: +447549870296
1. The input cannot be connected to AC power, nor can it be connected to 220V mains power.2. The maximum input voltage must not exceed 145V. It is recommended to use with in 140V, and the positive and negative terminals must not be connected reversely.3. The output has no reverse current protection. When connecting the battery, ensure that the power supply"s output voltage is always higher than the battery voltage. Alternatively, a diode can be connected in series with the positive output terminal to allow one-way conduction, preventing reverse current from the battery voltage from damagingthe power supply.4. When connecting the battery to the output terminal, pay attention not to connect the positive and negative terminals reversely.5. This product is a DC buck power supply. The maximum output voltage = input voltage * 0.945.
Features:
1. High Precision and Stability:
The DC buck power supply offers outstanding accuracy with a voltage precision of ±0.5% and a current precision of ±0.5%. This ensures reliable and consistent output, making it suitable for precision applications.
2. Advanced Protection Mechanisms:
Equipped with comprehensive protection features including under-voltage, over-voltage, over-current, over-temperature, and over-power protections. The system ensures safe operation under various conditions by providing adjustable thresholds.
3. User-Friendly Interface:
The unit features a large, easy-to-read 1.8-inch LCD screen that provides clear monitoring of voltage, current, and other parameters. The intuitive interface with 5 buttons allows for easy navigation and adjustment.
4. MPPT Solar Charging Support:
The power supply supports MPPT (Maximum Power Points Tracking) solar charging, optimizing the energy harvest from solar panels. This feature makes it ideal for renewable energy applications.
5. Compact and Efficient Design:
Boasting a conversion efficiency of about 95%, this power solution minimizes energy waste. Its compact size (119×74×43mm for the bare board) makes it easy to integrate into various systems where space is a premium concern.
I recently built an adjustable power supply using custom components and materials. Here’s my detailed feedback:
Performance and Features:
The display is clear and of good quality, offering accurate readings with useful multi-function features.
The power supply provides a wide range of output voltages and passed all basic functionality tests without any issues.
It performs reliably and consistently, even under higher loads.
Power Source:
I used two 48V 20A SMPS units connected in series (resulting in 110V output: 55V + 55V). This configuration worked flawlessly within the specified tolerance range (+/- 15%).
Although input sources of this type aren’t readily available locally, the units I used were easy to integrate and performed perfectly.
Enclosure and Build:
Since enclosures for this kind of setup are not easily available, I built a custom enclosure using 5mm thick Bakelite (Hylem) sheets. It is durable, heat-resistant, and well-suited for the application.
The overall design ensures excellent durability and adequate protection for the components.
Cooling:
The cooling system works effectively, with one fan directing airflow towards the SMPS heatsink and another fan acting as an exhaust. This setup prevents overheating and maintains stable operation.
Shipping and Availability:
The key components were shipped quickly to India, which was a major advantage given the limited local availability of specialized parts.
Overall Experience
This project resulted in a highly functional and versatile adjustable power supply. The combination of custom-built and sourced components worked seamlessly. I’m especially pleased with the quality of the display, the wide output range, and the robust performance of the SMPS units.
If you're looking for a custom, cost-effective solution with a wide range of applications, this setup is highly recommended.