LPHA-1 / PHA-1
6Pages

AC-DC Converters LPHA-1 (250 Watts) PHA-1 (500 Watts) Universal AC input regulated to 365 VDC Output or use with PICO's Hi-Power Models for 3.3 to 100 VDC Outputs Single or Dual Meets EN/IEC 6100-3-2 Requirements New Unity Power Factor Front End

PICO's LPHA1/PHA1 is the perfect match for universal AC inputs to your worldwide DC applications. Used with PICO's LPD, PD and HPD Series of DC-DC Converters you can obtain a variety of DC outputs from 3.3 VDC to 350 VDC in single and dual outputs. Many Laser and Motor Applications are able to use the LPHA1/PHA1 directly because of its unique 365 Volt regulated output. Regardless of use PICO always optimizes Size, Reliability and Cost. • Meets EN/IEC 6100-3-2 Requirements • Universal Input Voltage (85 to 250 VAC) • Power Factor: 0.99* • Efficiency 90% or better • PHA1: Up to 500 Watts** •...

Electrical Characteristics: Regulated 365V DC Output-can be used directly for many Motor, Laser and Direct Drive Applications. AC Line Input: 85-250 VAC/47-440 Hz Output Power: PHA1 Up to 500 Watts derate from 110 VAC to 85 VAC at the rate of 1.2% per volt LPHA1 Up to 250 Watts derate from 110 VAC to 85 VAC at the rate of 1.2% per volt Output Voltage Tolerance at Full Load: ± 2% Output Ripple: PHA1 10V P-P, Full Load, with 470 UF capacitor LPHA1 10V P-P, Full Load with 250 UF capacitor Operating Temperature: 0°C to +85°C Start Up Current Typical: 25-40A to 120 VAC 15-20A to 240 VAC Required...

Connections Diagram: Nofa: Ccr.su!: fa story fci C| capacitance and vchago ratings. ’f, fcrt. a .**# fasrAav nrfc flEW^r© *5 womo awit Larger Version of Diagram EXAMPLE 1: APHA1 module has an efficiency o! 92%. What is the maxim u m ambient lcmpe rale no if 200 Wans of power is needed. A) in free air. From Table 1: T— = 4.7 Using Relation (2) AT n 4.7 (200) - l] = 02*C Ta = 8S - 82 = 3‘C Q) in free air with heatsink (CV). Tru = 3.2 AT = 3.2 (200) -l] = 56X

What would be ihe maximum outpul power tor a LPH-1 module 0t an ambient temperature at 50”C with an efficiency of 92%. A) If the module is used in Iree air. From Table 1; T— ■ 7-9 Using Relation (£} as - »-up. - i] 8) II the module is used in an area with forced air al 200 LFM with no heatsink. C) If the module with heatsink (CV) Is used if free air. EXAMPLE 3: At a maximum ambient temperature of 50*C and an efficiency ol 90%, how could e PHA1 module be used if 400 Walts of output power Is required -Using Rotation (2), wo first find the maximum thermal resistance from case to...

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