- 您现在的位置：买卖IC网 > PDF目录8295 > VTM48EF120M025A00 (Vicor Corporation)VTM CURRENT MULTIPLIER 12V 25A PDF资料下载
参数资料
| 型号： | VTM48EF120M025A00 |
| 厂商： | Vicor Corporation |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | VTM CURRENT MULTIPLIER 12V 25A |
| 应用说明： | Factorized Power Architecture and V-I Chips |
| 标准包装： | 1 |
| 系列： | V-I Chip™, VTM™ |
| 类型： | 变压模块 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 26V |
| 电压 - 输入（最大）： | 55V |
| 输出电压： | 12V |
| 电流 - 输出（最大）： | 25A |
| 电源（瓦） - 制造商系列： | 300W |
| 电压 - 隔离： | 2.25kV（2250V） |
| 应用： | 商用 |
| 特点： | 具有远程开/关功能 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 模块 |
| 尺寸/尺寸： | 1.28" L x 0.87" W x 0.26" H（32.5mm x 22.0mm x 6.7mm） |
| 包装： | 托盘 |
| 工作温度： | -55°C ~ 125°C |
| 效率： | 96% |
| 电源（瓦特）- 最大： | 300W |
| 重量： | 0.033 磅（14.97g） |
VTM 48 E x 120 y 025A00
11.0 SINE AMPLITUDE CONVERTER TM POINT OF LOAD CONVERSION
The Sine Amplitude Converter (SAC TM ) uses a high frequency
resonant tank to move energy from input to output. (The
resonant tank is formed by Cr and leakage inductance Lr in the
power transformer windings as shown in the VTM TM module
Block Diagram. See Section 10). The resonant LC tank,
operated at high frequency, is amplitude modulated as a
function of input voltage and output current. A small amount
of capacitance embedded in the input and output stages of
the module is sufficient for full functionality and is key to
achieving power density.
The VTM48EF120T025A00 SAC can be simplified into the
following model:
973 pH
L L IN IN = = 5 nH
I I OUT
5.7 nH
OUT
R OUT
L OUT = 600 pH
+
V IN
C C IN IN
R CIN IN
0.57 m Ω
2 μF
I I Q Q
109 mA
1/4 ? I OUT
+
–
V ? I
+
–
3.13 Ω
1/4 ? V IN
9.0 m Ω
C OUT
R COUT
430 μ Ω
47 μF
+
V OUT
K
–
Figure 14 – V ? I Chip TM AC model
At no load:
–
interesting attributes. Assuming that R OUT = 0 Ω and I Q = 0 A,
Eq. (3) now becomes Eq. (1) and is essentially load
V OUT = V IN ? K
K represents the “turns ratio” of the SAC.
Rearranging Eq (1):
(1)
independent, resistor R is now placed in series with V IN as
shown in Figure 15.
SAC TM
K K = = 1/32
K=
V OUT
V IN
(2)
IN
Vin
+
–
R
SAC
1/32
OUT
Vout
In the presence of load, V OUT is represented by:
V OUT = V IN ? K – I OUT ? R OUT
and I OUT is represented by:
(3)
Figure 15 – K = 1/32 Sine Amplitude Converter with series
input resistor
The relationship between V IN and V OUT becomes:
I OUT =
I IN – I Q
K
(4)
V OUT = (V IN – I IN ? R) ? K
(5)
R OUT represents the impedance of the SAC, and is a function of
the R DSON of the input and output MOSFETs and the winding
resistance of the power transformer. I Q represents the
quiescent current of the SAC control and gate drive circuitry.
Substituting the simplified version of Eq. (4)
(I Q is assumed = 0 A) into Eq. (5) yields:
The use of DC voltage transformation provides additional
V OUT = V IN ? K – I OUT ? R ? K 2
(6)
Rev. 3.1
V?I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
2/2011
Page 11 of 18
v i c o r p o w e r. c o m
相关PDF资料 |
PDF描述 |
|---|---|
| VTM48EF040M050A00 | VTM CURRENT MULTIPLIER 4V 50A |
| VTM48EF030M070A00 | VTM CURRENT MULTIPLIER 3V 70A |
| VI-2TW-MV-F4 | CONVERTER MOD DC/DC 5.5V 150W |
| VTM48EF020M080A00 | VTM CURRENT MULTIPLIER 2V 80A |
| MC74HCT273ADWR2 | IC FLIP-FLOP OCT CLK/REST 20SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| VTM48EF120T025A00 | 功能描述:CONVERTER VTM 12V OUT 25A SMD RoHS:是 类别:电源 - 板载 >> DC DC 转换器（分解式） 系列:V-I Chip™, VTM™ 应用说明:Factorized Power Architecture and V-I Chips 产品培训模块:VI Chip Bus Converter Modules 标准包装:1 系列:V-I Chip™, BCM™ 类型:总线转换器模块 输出数:1 电压 - 输入（最小）:330V 电压 - 输入（最大）:365V 输出电压:12.5V 电流 - 输出（最大）:24A 电源（瓦） - 制造商系列:300W 电压 - 隔离:4.242kV（4242V） 应用:商用 特点:具有远程开/关功能和 UVLO 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:1.28" L x 0.87" W x 0.26" H（32.5mm x 22.0mm x 6.7mm） 包装:托盘 工作温度:-55°C ~ 125°C 效率:95.3% 电源（瓦特）- 最大:300W 重量:0.031 磅（14.06g） |
| VTM48EF240T012A00 | 制造商:Vicor Corporation 功能描述:CONVERT DC/DC VTM 24V 12A SMD |
| VTM48EF320M009A00 | 制造商:Vicor Corporation 功能描述:CONVERT DC/DC VTM 32V 9A SMD |
| VTM48EF320T009A00 | 制造商:Vicor Corporation 功能描述:CONVERT DC/DC VTM 32V 9A SMD |
| VTM48EH015_050A00 | 制造商:VICOR 制造商全称:Vicor Corporation 功能描述:VTMa?￠Current Multiplier |
发布紧急采购，3分钟左右您将得到回复。