آداپتور 12 ولت 2 آمپر بین راهی 12V-2Aمرغوب

آداپتورهای سوئیچینگ یک نوع مبدل الکتریکی هستند که جریان متناوب با ولتاژ بالا را به جریان مستقیم با ولتاژ پایین تبدیل می کنند.هم چنین با توجه به فیلترهای حذف نویز خروجی، آداپتورهای سوئیچینگ بهترین گزینه برای تغذیه دوربین های مداربسته می باشند. مهم ترین مزیت منبع تغذیه سوئیچینگ نسبت به مدل ترانسفورماتوری بازده بالای آن است. چرا که ترانزیستور سوئیچینگ فقط در ناحیه قطع و اشباع کار می کند، بنابر این توان مصرفی آن بسیار ناچیز است، که این سبب بالا رفتن بازده می شود.

یکی از انواع پاور سوییچینگ آداپتورهای بین راهی می باشد که با ابعاد و وزن پایین ناشی از جنس پلاستیکی خود، گزینه مناسبی برای کاربردهای با ولتاژ و آمپر محدود مانند تابلوهای ال ای دی ثابت کوچک و دیگر مصارف عمومی هستند.

از آداپتور مورد نظر جهت منبع تغذیه انواع دستگاه‌های گوناگون با ورودی برق 12 ولت DC با شدت جریان 2 آمپر استفاده می‌شود. این آداپتور برق 220 ولت AC شهری را به برق 12 ولت با شدت جریان 2 آمپر تبدیل می‌کند. از این آداپتورهای 12 ولت معمولا برای انواع دوربین مداربسته، دستگاه های صوتی و تصویری، و دیگر دستگاه‌های آزمایشگاهی و غیره استفاده می شود.

Description:

A switched-mode power supply is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source (often mains power) to DC loads, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. A hypothetical ideal switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time (also known as duty cycles). In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.
12V power supplies (or 12VDC power supplies) are one of the most common power supplies in use today. In general, a 12VDC output is obtained from a 120VAC or 240VAC input using a combination of transformers, diodes, and transistors. 12V power supplies can be of two types: 12V regulated power supplies, and 12V unregulated power supplies.12V regulated power supplies come in three styles: Switching regulated AC to DC, Linear regulated AC to DC and Switching regulated DC to DC.
The main advantage of the switching power supply is greater efficiency (up to 96%) than linear regulators because the switching transistor dissipates little power when acting as a switch.
Other advantages include smaller size, lower noise, and lighter weight from the elimination of heavy line-frequency transformers and comparable heat generation. Standby power loss is often much less than transformers. The transformer in a switching power supply is also smaller than a traditional line frequency (50 Hz or 60 Hz depending on region) transformer and therefore requires smaller amounts of expensive raw materials, like copper.
Switching regulated 12VDC power supplies, sometimes referred to as SMPS power supplies, switchers, or switched-mode power supplies, regulate the 12VDC output voltage using a complex high-frequency switching technique that employs pulse width modulation and feedback. Acopian switching regulated power supplies also employ extensive EMI filtering and shielding to attenuate both common and differential mode noise conducted to the line and load. Galvanic isolation is standard in our 12VDC switchers, affording our users input to output and output to ground isolation for maximum versatility. Acopian switching regulated power supplies are highly efficient, small and lightweight, and are available in both AC-DC single and wide-adjust output and DC-DC configurations. Our Low Profile wide adjusts output switchers can be voltage or current regulated and are externally programmable.

Feature:

Input Voltage: 100-240V-50/ 60Hz 0.8A
Output Voltage 12V
Output Current: 2A
Material: ABS Engineering plastic
Color: Black
DC Interface: 5.5 * 2.1
Size: 90 * 50 * 30