DER-53

105C Dual Output Cook top Power Supply

April 20, 2005

Page 19 of 27

Power Integrations

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9

Thermal Performance

Unit was placed into a box in a thermal chamber at 105ºC and allowed to reach thermal

equilibrium. The unit was placed in a box to prevent any airflow from the thermal chamber

fan from reaching the unit. Thermocouples were placed on the TOPSwitch, output

rectifier and transformer. At full rated load the unit does not have any appreciable

temperature rise over the ambient.

Temperature (

Item

115VAC

230VAC

Ambient

105

105

Transformer (T1)

109

105

TOPSwitch (U1)

105

105

Rectifier (D8)

105

105

Capacitor (C10)

105

105