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Application Notes

 

EPM Series 

Energy-Saving Power Module Series

 

 

 
Rev.3.1    May, 2013 

TAMURA CORPORATION 

  1 / 17 

Rev.3.1

ay, 2013

Outline   

 
The EPM Energy-Saving Power Module Series is a series of energy-saving switching power modules with built-in 
switching transformers, control ICs, control circuits and switching elements (FET). 
Attaching the input noise filter, the input rectifier diode and the output smoothing capacitor externally enables the 
easy creation of power switching with high-efficiency, low-standby power.   
 
 

Features   

 

 

Quasi-resonant operations for high efficiency. 

 

Operations using both frequency reduction and bursts for generation of low-standby power. 

 

Supports worldwide input and PFC output voltages (Vin: DC110V to 450V) 

 

Reinforced insulation between Primary and Secondary (AC3000V guaranteed for one minute). 

 

Resin filling is available to reduce audible noise. 

 

Compliant with all required safety standards for information equipment, AV equipment, industrial equipment, and 
home appliance equipment. 

 

Various built-in protection functions (overcurrent, overvoltage and overheating protection). 
 

 
 
 

 

Содержание EPM Series

Страница 1: ...Application Notes EPM Series Energy Saving Power Module Series EPM Series...

Страница 2: ...creation of power switching with high efficiency low standby power Features Quasi resonant operations for high efficiency Operations using both frequency reduction and bursts for generation of low sta...

Страница 3: ...g Externally Connected Equipment The example of application circuits and parts value which are indicated to this application note aim at assistance of a design Therefore external parts variation or us...

Страница 4: ...0pF 2200pF class 470pF 2200pF class C201 C202 10V 680uF 10V 680uF 25V 220uF 25V 330uF C203 1kV 0 022uF 1kV 0 022uF 1kV 0 022uF 1kV 0 022uF R101 3 3M 500V 3 3M 500V 3 3M 500V 3 3M 500V Part Output Spec...

Страница 5: ...e influence of the number of times of incoming current which occurs in an expected life We recommend you to ask a fuse maker a proper margin In order to share an input line and an input electrolytic c...

Страница 6: ...input line cutoff from the following expression and check that there is no problem Vt Vo e t CR Vt X capacitor voltage t seconds from input cutoff Vo Effective input voltage X 2 C X capacitor capacit...

Страница 7: ...rature With a power thermistor the relationship between the maximum value of the usable input voltage rms and the capacitance of the input smoothing electrolytic capacitor are set Check that the relat...

Страница 8: ...pacitance and the capacitance reduction due to aging into consideration when selecting the capacitance The capacitance required to reduce the ripple voltage to 25Vp p or less can be estimated from the...

Страница 9: ...made a life calculation parameter 2 Ripple current For AC input a charging current IL and discharging current IH flow in the input smoothing electrolytic capacitor These currents are measured individu...

Страница 10: ...uct Select the electrolytic capacitor by paying attention to the following Install the capacitor very close to the module M101 and use a wide pattern to connect M101 Use an electrolytic capacitor with...

Страница 11: ...the input smoothing electrolytic capacitor 1 Electrolytic capacitor temperature The temperature at which the temperature on the body of the electrolytic capacitor is maximum is measured and is made a...

Страница 12: ...ing the output ripple voltage more Since a ripple current equivalent to C201 may flow depending on the impedance of L201 check the ripple current temperature rise and life of C202 also Triangle wave h...

Страница 13: ...d then turning on the input again Reset time changes with input electrolytic capacity input voltage etc Avoid impressing a voltage onto the output terminals from the outside by wrap around from overvo...

Страница 14: ...y connecting an external resistor and capacitoras follows Connect capacitor C to Vcc pin 11 and DCIN pin 10 of M101 Use a capacitor C with a rated voltage of 35V or more When using an electrolytic cap...

Страница 15: ...use it had an effect on output accuracy 4 3 Pattern prohibited area When a double sided circuit board is used do not provide a pattern directly below M101 of the parts side of the circuit board If the...

Страница 16: ...d noise reduction may become difficult Make the distance between noise filter and module long 6 Recommended hole diameter land and pin pitch 7 Recommended soldering conditions lead free solder Flow so...

Страница 17: ...components as shown below When there are no heat generating parts nearby make the temperature 20mm from the module and 20mm above the circuit board the ambient temperature Ambient temperature measure...

Страница 18: ...uipment or devices that require high reliability medical devices transportation equipment traffic signal control equipment fire and crime prevention equipment aeronautics and space devices nuclear pow...

Страница 19: ...http www tamura ss co jp electronics en http www tamura ss co jp electronics en...

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