Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

EN1H21 Datasheet(PDF) 7 Page - Vicor Corporation

Part # EN1H21
Description  Component Power Front-end System for EN Compliance
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

EN1H21 Datasheet(HTML) 7 Page - Vicor Corporation

Back Button EN1H21 Datasheet HTML 3Page - Vicor Corporation EN1H21 Datasheet HTML 4Page - Vicor Corporation EN1H21 Datasheet HTML 5Page - Vicor Corporation EN1H21 Datasheet HTML 6Page - Vicor Corporation EN1H21 Datasheet HTML 7Page - Vicor Corporation EN1H21 Datasheet HTML 8Page - Vicor Corporation EN1H21 Datasheet HTML 9Page - Vicor Corporation EN1H21 Datasheet HTML 10Page - Vicor Corporation EN1H21 Datasheet HTML 11Page - Vicor Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 13 page
background image
ENMODS
Rev 3.1
vicorpower.com
Page 7 of 13
06/2015
800 927.9474
EN1xxx
The ENMod component power front-end system for
EN compliance provides an effective solution for an AC
front end of a power supply enabled with Vicor DC-DC
converters. The ENMod system’s basic building blocks are
the MiniHAM passive harmonic attenuation module, the
FARM3 autoranging AC-DC front-end module (Figure 9) and
a discrete EMI filter.
The ENMod system provides transient/surge immunity,
harmonic current attenuation and EMI filtering, in addition to
all of the power switching and control circuitry necessary for
autoranging rectification, inrush current limiting, and
overvoltage protection. Converter enable and status functions
for orderly power up/down control or sequencing are also
provided. To complete the AC front-end configuration, the user
only needs to add hold-up capacitors, a simple EMI filter, and
a few discrete components (see Fig. 1a).
Functional Description (FARM3, see Figures 9 & 10)
Power-Up Sequence.
Upon application of input power, the hold-up capacitors
begin to charge. The thermistor limits the charge
current, and the exponential time constant is determined
by the hold-up capacitor value and the thermistor cold
resistance. The slope (dV/dt) of the capacitor voltage
versus time approaches zero as the capacitors become
charged to the peak of the AC line voltage.
The switch that bypasses the inrush limiting PTC
(positive temperature coefficient) thermistor is open
when power is applied, as is the switch that engages the
strap for voltage doubling. In addition, the converter
modules are disabled via the Enable (EN) line, and Bus-
OK (BOK) is high.
If the bus voltage is less than 200 V as the slope nears
zero, the voltage doubler is activated, and the bus
voltage climbs exponentially to twice the peak line
voltage. If the bus voltage is greater than 200 V, the
doubler is not activated.
If the bus voltage is greater than 235 V as the slope
approaches zero, the inrush limiting thermistor is
bypassed. Below 235 V, it is not bypassed.
The converters are enabled ~150 milliseconds after the
thermistor bypass switch is closed.
Bus-OK is asserted after an additional ~150 millisecond
delay to allow the converter outputs to settle within
specification.
Power-Down Sequence.
When input power is turned off
or fails, the following sequence occurs as the bus voltage
decays:
Bus-OK is deasserted when the bus voltage falls below
210 Vdc.
The converters are disabled when the bus voltage falls
below 190 Vdc. If power is reapplied after the
converters are disabled, the entire power-up sequence is
repeated.
If a momentary power interruption occurs and power
is reestablished before the bus reaches the disable
threshold, the power-up sequence is not repeated,
i.e., the power conversion system “rides through”
the momentary interruption.
APPLICATION NOTE
Microcontroller
N
L
PTC
Thermistor
+OUT
–OUT
Strap
EN
BOK
Strap
SR
EMI
Filter
EMI GND
400
300
200
100
0
90–132 V
AC Line
Output
Bus
(Vdc)
Strap
PTC
Thermistor
Bypass
Converter
Enable
Bus OK
~150 ms
Power
Up
Power
Down
4.1
1.1
2.1
3.1
5.1
2.2
1.2
~150 ms
Figure 9 — Functional block diagram: FARM3 module
Figure 10 — Timing diagram: power-up/down sequence
1.1
2.1
3.1
4.1
5.1
1.2
2.2


Similar Part No. - EN1H21

ManufacturerPart #DatasheetDescription
logo
Vicor Corporation
EN1H21 VICOR-EN1H21 Datasheet
347Kb / 12P
   ENMods Component Power Front End System for EN Compliance
logo
Powerbox
EN1H21 POWERBOX-EN1H21 Datasheet
415Kb / 1P
   AC INPUT MODULAR FRONT END SYSTEMS
logo
Vicor Corporation
EN1H21 VICOR-EN1H21 Datasheet
879Kb / 13P
   Component Power Front-end System for EN Compliance
EN1H21 VICOR-EN1H21 Datasheet
879Kb / 13P
   Component Power Front-end System for EN Compliance
EN1H21.2.3 VICOR-EN1H21.2.3 Datasheet
733Kb / 13P
   Component Power Front-end System for EN Compliance
More results

Similar Description - EN1H21

ManufacturerPart #DatasheetDescription
logo
Vicor Corporation
ENMODS VICOR-ENMODS Datasheet
733Kb / 13P
   Component Power Front-end System for EN Compliance
EN1XXX VICOR-EN1XXX Datasheet
879Kb / 13P
   Component Power Front-end System for EN Compliance
EN1C11 VICOR-EN1C11_17 Datasheet
879Kb / 13P
   Component Power Front-end System for EN Compliance
ENMOD VICOR-ENMOD Datasheet
347Kb / 12P
   ENMods Component Power Front End System for EN Compliance
logo
XP Power Limited
CPH500USC3 XPPOWER-CPH500USC3 Datasheet
86Kb / 2P
   Component Power AC Front End Modules
logo
Vicor Corporation
MI-AI VICOR-MI-AI Datasheet
210Kb / 2P
   Military Component Front End Modules
logo
List of Unclassifed Man...
MI-AIM ETC-MI-AIM Datasheet
210Kb / 2P
   Military Component Front End Modules
logo
Mean Well Enterprises C...
RCP-1000 MEANWELL-RCP-1000 Datasheet
669Kb / 8P
   1000 ~ 3000W Front End Power System
RKP-1U MEANWELL-RKP-1U Datasheet
929Kb / 6P
   2000~6000W Front End Power System
RCP-1000 MEANWELL-RCP-1000_11 Datasheet
682Kb / 8P
   1000 ~ 3000W Front End Power System
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com