NEW UNITY POWER FACTOR FRONT END
PICO HPHA2
2000 Watt ACDC Converter
Single or 3 Phase AC Input
Fixed Frequency: 100 Khz
PICO's
HPHA2 is the perfect front end for your universal AC for your single phase or
3 phase input / DC output applications. The standard 2.5" x 4.6" x 0.5"
footprint is one of the smallest on the market today in this power range.
Providing a 365V regulated DC output, it can be used as a front end for PICO's
FD/MD/LFD/LMD/LPD/PD and HPD series of DCDC converters which can provide from
3.3V to 300V DC. Also, many laser and motor applications are able to use
the HPHA2's 365V DC output directly. For different output voltages and
for expanded operating termperature, please consult factory.
HIGHLIGHTS OF
FEATURES:

Full
Electrical Specifications: NOTE: Regulated 365V DC Output can be used directly for many Motor, Laser, and Direct Drive applications.

NOTE: The torque for mounting screws must be 3 to 5 InLbs.
NOTES: (1) To HPHA2 Chassis or No Connection PICO recommends using an output capacitor large enough in value to limit the ripple voltage to 10Vpp. For the LPHA1, LPHA, HPAHA1, and HPHA2 Models, the following formula can be used to calculate the necessary cpacitance for Vpp of 10V for any output power. Assume line frequency of 60 Hz and VO nominal of 365 V Efficiency of 90%. 

HPHA2 Series Thermal Resistance
(Trca) of case
to Air
TABLE 1
alone* 
CV* 
CH* 

























Thermal Derating Examples:
Use the equation
from application notes,
From Table 1, get Trca): TcaseTambient=Trca
*Pout*(¹/n  1)
1) What is the maximum output power from HPHA1 module
in a 25ºC ambient if the efficiency is 90% and the case temperature
is not to exceed 85ºC?
a) in free air, no heatsink (From Table 1, use Trca=5.10)
Pout = (85ºC25ºC) / 5.1*(¹/0.9  1) =105.8 Watts
b) in 200 LFM airflow, with CH heatsink:
From Table 1: use Trca=1.00):Pout=(85ºC25ºC) / 1.0*(¹/0.9  1) = 540 Watts
c) in 1000 LFM airflow, with CH heatsink
(From Table 1, use Trca = 0.40)Pout = (85ºC  25ºC) / 0.40*(¹/0.9  1) = 1350 Watts
(However, Pout=1000 Watts maximum for HPHA1 module)
2) in 400 LFM airflow, with CH heatsink:
from Table 1: use Trca = 0.70):/\T = 0.7*600*(¹/0.9  1) = 46.7ºC
Tambient = 85ºC  /\T = 38.3ºC
For immediate engineering assistance or to place an order  Call Toll Free 8004311064
PICO ELECTRONICS, Inc.
143 Sparks Avenue, Pelham, N.Y. 108031810
Fax: (914)7388225