參數(shù)資料
型號(hào)： MR2940
廠(chǎng)商： Shindengen Electric Manufacturing Company, Ltd.
英文描述： Provision for Standby mode operation Partial Resonance Power Supply IC Module
中文描述： 撥備待機(jī)模式操作局部共振電源IC模塊
文件頁(yè)數(shù)： 13/19頁(yè)
文件大?。?/td> 226K
代理商： MR2940
Shindengen Electric MFG.CO.,LTD
- 13 -
5.1 Design Flow Chart
5.2 Main Transformer Design Procedure
This design procedure provides an example of an electrical design procedure.
Ensure that design of insulation materials, insulation configuration, and structure are in accordance with the necessary safety
standards as determined by the relevant authorities.
5.2.1 Standard Design Conditions
Abbreviation
Unit
Reference value
Minimum input voltage
Rated output voltage
Rated output current
V
AC(min)
V
o
I
o
V
V
A
―
―
―
Maximum output current
Efficiency
Minimum oscillation frequency
I
o(max)
η
f
(min)
A
―
0.80
～
0.85
25k
～
50kHz
kHz
Duty ratio
Control coil voltage
Effective cross-sectional area of transformer core
D
V
NC
A
e
0.50
～
0.70
15
～
17V
―
V
mm
2
Magnetic flux density variation
Coil current density
Δ
B
α
mT
A/mm
250
～
320mT
4
～
6A/mm
2
2
Note that the above values are for reference only, and should be adjusted to suit load conditions.
5. Design Procedures
MR2900
Application Note
Refer to:
5.2 Main Transformer Design Procedure
5.3 Main Transformer Design Examples
Selection of primary circuit
components
Main transformer design
Specifications determined
Cooling design
Trial manufacture
Refer to:
5.4 Selection of Constants for Peripheral Components
Operational checks
Completion
No problems
Problems found
Reexamination
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MR2940-7109F12 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 VDS=900 Dev=IGBT RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MR2A08ACMA35 功能描述:NVRAM 4Mb 3.3V 35ns 512Kx8 Parallel MRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線(xiàn)寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪(fǎng)問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
MR2A08ACMA35R 功能描述:NVRAM 4Mb 3.3V 35ns 512Kx8 Parallel MRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線(xiàn)寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪(fǎng)問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
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