3 از 5.0 با 11 رای
منابع تغذیه AC/DC صنعتی که اصطلاحا آنها را پاور سوئیچینگ صنعتی
Switching power adapter مینامند این امکان را برای کاربر فراهم میکنند
تا یک ولتاژ ورودی AC مانند 110V AC یا 220V AC را به ولتاژ خروجی کاهش
یافته مستقیم DC تبدیل کند. میزان شدت جریان خروجی در انواع گوناگون متفاوت
است. این منبع تغذیه دارای ولتاژ خروجی 24 ولت با 20 آمپر عرضه میشود.
باتوجه
به این که این دسته از منابع تغذیه از فناوری سوئیچینگ بهره میبرند نیاز
به استفاده از ترانس با ابعاد و وزن بالا را برای کاربران برطرف کرده
است. این پاور سوئیچینگ دارای فن بوده تا حرارت ایجاد شده در درون جعبه
فلزی به بیرون رانده شود.
میزان بازدهی توان این پاور سوئیچینگ به بیش از 85 درصد می رسد و دارای توان خروجی 500 وات می باشد.
جنس
بدنه این پاور سوئیچینک از جنس آلومینیوم می باشد و برای حفظ عمر این
پاور، از مدار محافظ در برابر اتصال کوتاه، گرمای بیش از حد و بار مصرفی
زیاد کمک گرفته شده است.
مستندات:
بررسی POWER24V20A
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.
24V power supplies are
one of the most common power supplies in use today. In general, a 24VDC
output is obtained from a 120VAC or 240VAC input using a combination of
transformers, diodes, and transistors. 24V power supplies can be of two
types: regulated power supplies, and unregulated power supplies. The
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 24VDC power supplies,
sometimes referred to as SMPS power supplies, switchers, or
switched-mode power supplies, regulate the 24VDC 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 24VDC 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.
This switching power supply includes Protection Functions such as Short circuit / Over load and Over Temperature.
Features:
Input Voltage: 110/220V AC
Output Voltage: 24V DC
Output Current: 20A
Output Power: 500 W
Type of Output: Constant Voltage
Power Factor: >85%
Case Material: Aluminum
Size: 215 × 114 × 50 mm
Protected Functions: Short circuit / Over load / Over Temperature