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45
Features
* * * * * * * 675 Watts output power Unity power factor 85-264 Vac universal input Meets EN 61000-3-2 Short circuit protection Input surge limiting High efficiency
VI-HAM
TM
High-Boost Harmonic Attenuation Module
Product Overview The high-boost HAM (Harmonic Attenuator Module) is a universal AC input, PFC frontend module that has been optimized for use with Vicor's V375 series of DC-DC converters. A single high-boost HAM may be used with any combination of V375 series DC-DC converters which are available in quarter, half and full brick packages with up to 600 Watts of output power. Versions without internal diode bridges (HAMD and BAMD) can be operated in parallel to provide power expansion capability. The combination of the high-boost HAM with V375 DC-DC converters results in a power conversion system with twice the power density, fewer components and lower cost compared to previous HAM-based solutions. In addition, the high-boost HAM is fully compatible with Vicor's VI-26x and VI-J6x series DC-DC converters. This gives designers the freedom to choose from the industry's broadest selection of DC-DC converters with outputs from 2 to 95 Vdc, 50 - 600 Watts. The user need only provide external hold-up capacitors, a few discrete components, and a line filter (available from Vicor).
Actual size: 4.6 x 2.4 x 0.5 in (116,8 x 61,0 x 12,7 mm)
Absolute Maximum Ratings
Parameter L to N voltage L to N voltage Output power Mounting torque Pin soldering temperature Baseplate temperature Auxiliary output Rating 265 280 750 5 (0.57) 750 (400) 85 3 Unit Vac Vac Watts in- lbs (N-m) F (C) C mA Notes Continuous 100 ms # 6-32 or m3.5
Part Numbering
VI-HAM
Product Type
VI-HAM = Hamonic Attenuator Module VI-HAMD = Hamonic Attenuator Module Driver VI-BAMD = Hamonic Attenuator Module Booster (VI-HAMD and VI-BAMD can be used in parrallel or in arrays for applications that require more than the power available from a single VI-HAM)
-
C
Product Grade
E = -10C to +85C C = -20C to +85C I = -40C to +85C M = -55C to +85C
L
Output
L = 675 W
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 1 of 8
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Electrical Characteristics
Electrical characteristics apply at the nominal value of input voltage, output load and baseplate temperature, unless otherwise specified. All temperatures refer to the operating temperature of the baseplate. Specifications apply for AC mains having no more than 5% total harmonic distortion.
INPUT SPECIFICATIONS (HAM-xL, HAMD-xL, BAMD-xL)
Parameter Operating input voltage HAM, HAMD, BAMD AC line frequency Power factor Total harmonic distortion (line current) Total harmonic distortion (line current) Inrush current Min 85 47 0.99 7.5 8.5 20 % % Amps Sinusoidal, 115 Vac, full load Sinusoidal, 230 Vac, full load 230 Vac, full load Typ Max 264 63 Unit Vac Hz Notes Rectified AC for HAMD, BAMD Unit will operate from 400 Hz but may not meet PF or THD specs
OUTPUT SPECIFICATIONS
Parameter Maximum output power Output voltage Efficiency External hold-up capacitance Ride through / hold-up time Ripple Ripple Short circuit shut down current Min 675 278 360 90 470 16 7 5 10 6 100 280 365 92 3,000 282 370 Typ Max Unit Watts Vdc Vdc % F ms Vp-p Vp-p mA 675 W output with 1,000 F hold-up capacitor 115 Vac, full load, 1,000 F hold-up capacitor 230 Vac, full load, 1,000 F hold-up capacitor Foldback current limiting Notes See power derating graph, fig.3 115 Vac In 230 Vac In
CONTROL SPECIFICATIONS
Parameter Power OK threshold Module enable / disable threshold Auxiliary output Auxiliary output 240 19 Min Typ 270 250 260 23 3 Max Unit Vdc Vdc Vdc mA 3 mA No overload protection Notes
ELECTROMAGNETIC COMPATIBILITY
Parameter Transient / surge immunity Line disturbance immunity Flicker / inrush Harmonic current Standard EN 61000-4-5 EN 61000-4-11 EN 61000-3-3 EN 61000-3-2 Notes 1 kV L-N, 2 kV L-PE with 07818 filter Main's interruption or brown out 20 A peak inrush at 230 Vac input 7.5% THD
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 2 of 8
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Electrical Characteristics (cont.)
SAFETY SPECIFICATIONS
Parameter Isolation (in to out) Dielectric withstand (I/O to baseplate) Capacitance
Min
Typ None
Max
Unit
Notes Provided by DC-DC converters
2,121 150
Vdc pF
Baseplate earthed Input to baseplate
AGENCY APPROVALS
Safety Standards UL 60950-1, EN 60950-1, CSA 60950-1 Low Voltage Directive
Markings cTUVus CE
Notes
GENERAL SPECIFICATIONS
Parameter Size Weight Pin material Cover material Storage temperature E & C Grade I Grade M Grade Operating temperature E Grade C Grade I Grade M Grade Thermal shut down MTBF HAM HAMD BAMD
Typ 4.6 x 2.4 x 0.5 / (116,8 x 61,0 x 12,7) 6.4 / (180) Solder Plate over copper alloy GE ULtem 2100 black #7310 UL94-VO rated
Unit in / mm oz / (g)
Notes
-40 to +100 -55 to +100 -65 to +100
C C C
-10 to +85 -25 to +85 -40 to +85 -55 to +85 90 >420,000 >424,000 >818,000
C C C C C hrs hrs hrs
Baseplate temperature Baseplate temperature Baseplate temperature Baseplate temperature Baseplate temperature (Min) GB, 25C GB, 25C GB, 25C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 3 of 8
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Technical Description
The HAM (Figure 1) consists of a full-wave rectifier, a high-frequency zero-current switching (ZCS) boost converter, active inrush current limiting, short-circuit protection, control and housekeeping circuitry. The incoming AC line is rectified and fed to the boost converter. The control circuitry varies the operating frequency of the boost converter to maintain the output voltage of the HAM above the peak of the incoming line, while forcing the input current to follow the waveshape and phase of the line voltage. The AC input current follows the voltage waveform and a power factor better than 0.99 is achieved. Operating efficiency of the boost converter is optimized at any incoming line voltage by an adaptive output voltage (Figure 3) control scheme.
AC Line
Rectifier
ZCS Boost Converter
Current Sense
Inrush & Short Circuit Protection
+ DC Out - Note: Non-Isolated Output
Voltage Waveform
High Frequency Control Output Voltage Control Module Enable & Housekeeping Power OK Circuitry Aux. Supply
Gate In Gate Out NOTE: No input to output isolation.
Figure 1 -- HAM Block Diagram
Oscilloscope photos showing input voltage and current waveforms. Figure 2a - Without power factor correction Figure 2b - With power factor correction
Figure 2a -- Without PFC
Figure 2b -- With PFC
The output voltage of the HAM is a function of incoming AC line voltage (Figure 3). On a nominal 115 Vac line, the output voltage of the HAM is 280 Vdc -- well within the input operating voltage range of Vicor DC-DC converters. Above 180 V input, the output voltage linearly increases with input voltage. At 230 Vac the delivered voltage will be aproximatly 365 V. For any given input line voltage, the HAM maintains enough headroom between the output voltage and peak input voltage to ensure high quality active power factor correction without sacrificing operating efficiency.
425 700 650 400 375 350 325 300 275 250 85 95 105 110 115 140 160 180 200 210 220 230 240 250 264
600 550 500 450 400
Input voltage VRMs
Rated Output Power Output Voltage
Figure 3 -- Output voltage and power rating versus input voltage
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 4 of 8
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Output Voltage
Output Power
F3 8A
270 V MOV P/N 03040
V375 DC-DC Converters
F1 PC-Tron 3A C5
L1 GND L2/N
LINE
L1 Vicor Line Filter P/N 07818 6.3 A L2/N
LOAD
L1 GATE IN GATE OUT L2/N VI-HAM
+ OUT P/OK E/O A/S - OUT
R1 R2 C1 D1 D2 C2
+IN PC PR
D4
-IN
C6
Y-Capacitor
Component Designation C1, C2, C3 C4
Description 0.1 F ceramic 0.01 F ceramic Hold-up capacitor, 1,000 to 3,000 F 50 K ohm 250 ohm, 0.25 W 100 K ohm, 2 W 1N4691 1N4006 1N5817 270 V MOV 4,700 pF Y2 cap. 3 A PC Tron 8A
Vicor Part Number 01328 00192 Available as a HUB from Vicor (see adjoining table)
C4 R4*
VI-26X or VI-J6X DC-DC Converters
F2 PC-Tron 3A R3 D3 D5 C3 C7
+IN GATE IN GATE OUT -IN
R1 R2, R3 R4* D1 D2, D3 D4, D5 V1 C5-C8 F1, F2 F3
00670 26108 03040 01000 02178
Hold-up Box (HUB)
available as accessory product through Vicor Express
C8
Y-Capacitor
540 F 940 F 1,640 F 2,000 F
HUB270-P HUB470-P HUB820-P HUB1000-P
150 W max 300 W 450 W 675 W
* A 100 K, 2 Watt resistor is used for every 1,000 F of hold-up capacitance.
Figure 4 -- Connection diagram HAM / DC-DC converters
Pin Function / Description
* L1 and L2/N (HAM) The HAM requires Vicor's P/N 07818 line filter or equivalent.** Connect single phase AC mains to the input of the line filter via a standard 8 A, 250 V fuse. Connect the output of the filter to L1 and L2/N of the HAM. Do not put an X capacitor across the input of the HAM or use a line filter with an X capacitor on its output as power factor correction may be impacted. * +IN, -IN (HAMD, BAMD): These pins are connected to the output of the external bridge rectifier in HAMD / BAMD configurations (Figure 5). * GATE IN (HAM): The user should not make any connection to this pin. This pin disables the boost converter only. Rectified line current may still be present on the output. This pin does not provide the same function as the Gate Input pin of VI-200 / VI-J00 modules. * GATE IN (HAMD): This pin provides line voltage envelope and phase information for power factor correction. This connection must be made through the synchronization diodes between the line filter and bridge rectifier (Figure 5). * GATE IN (BAMD): The Gate In pin is an interface pin to the Gate Out pin of a HAMD or BAMD depending on configuration. The user should not make any other connection to this pin. * GATE OUT: The Gate Out pin is an interface pin to BAMDs; the user should not make any other connection to this pin. * +OUT and -OUT Connect the +OUT of the HAM to the +IN of the respective Vicor DC-DC converters via a 3 A PC Tron DC fuse. Connect the -OUT of the HAM to the -IN of the converters. In addition, an external hold-up capacitor of 1,000 F with a minimum voltage rating of 450 Vdc, is required (across the output of the HAM) for 16 ms ride through time at 600 W (500 F for 300 W, etc). This capacitor must be in close proximity to the HAM. Do not exceed 3,000 F of total output capacitance. Lower values of capacitance may be used for reduced hold-up requirements, but not less than 470 F. Lower capacitance values may degrade power factor specifications. * E/O The Enable Output (E/O) is used to inhibit the DC-DC converters at start up until the hold-up capacitors are charged, at which time Enable is asserted high (open state, Figure 8). If the AC line fails, E/O goes low when the DC output of the HAM drops below 250 Vdc.
** Contact the Vicor technical support center at 800-927-9474 for filter substitutes.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 5 of 8
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V375 DC-DC Converters
F1 PC-Tron 3A C5
+IN GATE IN F3
15 A
+OUT HAMD P/OK E/O A/S -OUT
R1 C1 D1 R2 D2
+IN PC
C2 D4
Input L1 L1
1N4006
Bridge Rectifier
~
GATE OUT -IN
PR -IN
C6 C7
+
270 V MOV P/N 03040
GND L2/N
Line Filter 12.6 A**
1N4006
Y-Capacitor
L2/N
~
-
F2 PC-Tron 3A
410 V Transorb 1.5 KE 130CA 1.5 KE 130CA 1.5 KE 150CA
+IN GATE IN BAMD GATE OUT -IN
+OUT
R3 D3 C4 D5 R4* C3
+IN PC PR -IN
C8
Component Designation C1, C2, C3 C4
Description 0.1 F ceramic 0.01 F ceramic Hold-up capacitor, 1,000 to 3,000 F 50 K ohm 250 ohm, 0.25 W 100 K ohm, 2 W 1N4691 1N4006 1N5817 270 V MOV 4,700 pF Y2 cap. 3 A PC Tron 15 A
Vicor Part Number 01328 00192 Available as a HUB from Vicor (see adjoining table)
-OUT
Y-Capacitor
R1 R2, R3 R4* D1 D2, D3 D4, D5 V1 C5-C8 F1, F2 F3
00670 26108 03040 06852 02178
Hold-up Box (HUB)
available as accessory product through Vicor Express
540 F 940 F 1,640 F 2,000 F
HUB270-P HUB470-P HUB820-P HUB1000-P
150 W max 300 W 450 W 675 W
* A 100 K, 2 Watt resistor is used for every 1,000 F of hold-up capacitance.
Figure 5 -- Connection Diagram, HAMD / BAMD / V375 DC-DC Converters HAMD-CL Driver HAM: No internal bridge rectifier or synchronization diodes. BAMD-CL Booster HAM: Companion module to HAMD-CM used for additional output power. No internal bridge rectifier.
Pin Function Description (cont.)
E/O must be connected to the Gate Input of all VI-26x and VI-J6x drivers and / or the PC pin of the V375 DC-DC converters; failure to do so may cause the converters to toggle on and off. (Figure 4) If an external load is connected directly to the output of the HAM, do not apply the load until the output hold-up capacitor(s) are fully charged.
+
In applications using VI-26x drivers and VI-J6x boosters, the E/O pin should be connected to the Gate In pin of the driver module only, it is not necessary to connect this pin to boosters as they are controlled by their respective driver. The E/O pin ancillary circuitry illustrated in Figures 4 and 5 provides transient immunity. The aforementioned connections are the minimum required. In addition, there are other features available. * A/S The HAM provides a low voltage output Auxiliary Supply (A/S) that may be used to power primary side control and monitoring circuitry. This output is 19-23 Vdc, referenced to -OUT, at 3 mA max. Do not overload or short this output as the HAM will fail. A typical use for A/S is to power an optical coupler that isolates the Power OK signal (Figure 6).
** Consult Vicor's technical support center at 800-927-9474 for specific HAMD / BAMD filtering information.
19 - 23 V -
A/S 3 mA -OUT
"Power OK" Status Low = OK
+ OUT P/OK E/O A/S - OUT 18 k, 1/4 W
Figure 6 -- Auxiliary Supply (A/S)
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 6 of 8
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Pin Function Description (cont.)
* P/OK Power OK is a monitor signal that indicates the status of the AC mains and the DC output voltage of the HAM. P/OK is asserted (active low) when the output bus voltage is within normal operating range (>270 Vdc) and 20-25 ms after DC-DC converters are enabled by the E/O signal of the HAM. This provides sufficient time for the converters to turn on and their output(s) to stabilize prior to P/OK being asserted (Figure 6). For momentary interruptions of AC power, the HAM will provide at least 16 ms of ride through or hold-up time (with 1,000 f output capacitor). On loss of power or brownout, (when the HAM output voltage drops below 270 Vdc) the P/OK signal will go high, to an open circuit state, (Figure 7) signaling an impending loss of input power to the converter modules. P/OK will provide power fail warning at least 1 ms prior to converter shut down. When the HAM output voltage drops below 250 Vdc the converters are disabled via the Module Enable. (Figures 7-9)
Applications Notes
* ThermMates or thermal compound should be used between the heat sink and baseplate of the HAM, HAMD and BAMD to insure adequate heat transfer. * The HAM output is not isolated from the line input; isolated probes must be used when making scope measurements.
Protective Features
Over Temperature Shut Down The HAM incorporates over temperature shut down, and is designed to shut down when the temperature of the baseplate exceeds 90C. The HAM should not be operated for extended periods above its maximum operating temperature of 85C. Short Circuit Protection The HAM contains output short circuit protection. Operation of this function does not clear the input fuse and the output will resume normal operation after removal of the fault. A short period of time may be required to allow for cooling of an internal temperature sensor. Output Over Voltage Protection The HAM contains output over voltage protection. In the event the output voltage exceeds approximately 420 Vdc, the boost will decrease to maintain 420 Vdc on the output. When the peak of the AC line exceeds 420 V (approximately 293 Vac) the boost will have been reduced to zero. Beyond this the protection circuit will be enabled and the output voltage will decrease. Over current protection is provided by the Vicor DC-DC converters.
D LOGIC G S
P/OK
E/O D LOGIC
-OUT
S G
-OUT
Figure 7 -- Power OK (P/OK)
Figure 8 -- Enable / Output (E/O)
AC Mains 120 V RMS 270 Vdc 250 Vdc
DC Output of HAM
Boost Voltage 280 Vdc Rectified Line
Module Enable
Off at 250 Vdc
25 ms Power OK Off at 270 Vdc
Outputs DC-DC Converter(s)
10 ms
Off at 375 Vdc
Figure 9 -- Start up / shut down timing diagram
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 1.5
Page 7 of 8
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4.60 (116,8)
0.50 (12,7)
0.30.015 (7,6)(0,38)
1.80 (45,7)
3.60 (91,4)
.080 (2,0) Dia. (2) places Solder plate over copper alloy 9
4 3 2.10 (53,3) 2 1
Pin # 1 2 3 4 5 6 7 8 9
HAM L1 GATE IN GATE OUT L2/N +OUT P/OK E/O A/S -OUT
HAMD +IN GATE IN GATE OUT -IN +OUT P/OK E/O A/S -OUT
BAMD +IN GATE IN GATE OUT -IN +OUT N/C N/C A/S -OUT
VI-HAM
8 7 6 5
1.40 1.00 (35,6) 0.70 (25,4) 0.40 (17,8) (10,2) .35.015 (8,9)(0,38)
0.15 (3,8)
FULL R 0.15 (3,8) Product ID this surface
0.040 (1,0) Dia (7) places Solder plate over copper alloy 2.40 (61,0) 1.75 (44,5)
4.20 (106,7)
0.20 (5,08) MIN 0.29 (7,36) MAX
0.30 (7,6) Min
0.50 (12,7) 0.12 (3,0)
+.030 (0,76) -.000 (0)
.01 Aluminum Base
Vicor's comprehensive line of power solutions includes high density AC-DC and DC-DC modules and accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor components are not designed to be used in applications, such as life support systems, wherein a failure or malfunction could result in injury or death. All sales are subject to Vicor's Terms and Conditions of Sale, which are available upon request.
Specifications are subject to change without notice.
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Vicor Corporation 25 Frontage Road Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 email Vicor Express: vicorexp@vicr.com Technical Support: apps@vicr.com
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
P/N 30614
Rev. 1.5
11/05
Set your site on VICOR at www.vicorpower.com

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