5 Key advantages① Efficiency② Noise Solution③ SCM④ Form-Factor⑤ Time to Market

Concerns about Energy Efficiency…

①Efficiency

Improving
Energyefficiency…

Improve Stand-by Power
Compliance with standby energy regulations(Example: EPM0510SJ)

Complying
with energy
regulations …
150Standby Energy (mW)

150mW
Eu CoC regulations (Tier 1)
to be enforced in 2015
100100mW

USA DoE regulations
to be enforced in 2015

75mW

Eu CoC regulations (Tier 2)
to be enforced in 2017
EPM0510SJ

50

EPM0510SJ
0100

150200250300

Input Voltage (VDC)

350

400450Concerns about Noise and Vibration Sound …
We want toreduce humming
sound in power
supply.

②Noise Solution
Improve Audible Noise level
Humming sound is reduced byTamura’s unique structure.

Is therea way toreduce it?
dB

Humming soundreduced toConventional Power Supply
Power module

Max 1/60

20Hz

Audio frequency range

20kHz(Comparison with Tamura’s previous Power Module)

Component Management is Troublesome …
Concerns about Component Management …
Management ofdiscontinued
components istroublesome.

③SCM
Easy Management

We want tosimplify componentmanagement.

Primary side

Replacedcomponents

Secondary side

TOTAL

EPM

61310Discretecomponent

2611138(Example: Substrate sample)

When discrete components
are used, 29 components
need to be prepared.

A comparison of thenumber ofcomponents

29：1

When the power supply module
is used, 1 component needs
to be prepared!

(Comparison with Tamura’s previous Power Module)

Concerns about Size …

Mounting spaceis limited.

Substrates should
be as small as
possible…
What should we do …?

④Form-Factor
Compact Design
Discrete components
having the same functions as EPM

EPM
Area ratio

２：１

S=38mm X 53mm=2014mm2

S=33mm X 31mm
=1023mm2

50% Less!!

(Comparison with Tamura’s previous Power Module)

Concerns about Time Required for Development/Design …

⑤Time to Market

No human Resource
are left to design
standby power supplies.

Facilitates Circuit Design
Development/design
Human Resource can be reduced.

Productdevelopment cycleis short …

Support provided by application note

External
component
designReduced by approx.

External
component
design80%80
0204060

Transformer design, circuit design, control IC evaluation, heat release design, substrate design, EMI/EMC evaluation,
application for approval of safety standards, component/material arrangement for individual prototypes, etc.

80100
(Comparison with Tamura’s previous Power Module)

Applications
Consumer electronics, Information processing equipment, AV equipment ,Stand-by Power

Refrigerator Microwave oven kichen appliances

Smart meter

LED Lighting

UPS

Cleaner

Air-conditioner

General-inverter

Toiletary

PV inverter

Product Lineup

RoHS
compliant(Between Pri-Sec)

0.7A

OK

Reinforced insulation

mass production

5V

0.66A

OK

Reinforced insulation

mass production

SPM1203SJ

12V

0.28A

OK

Reinforced insulation

mass production

SPM1502SJ

15V

0.22A

OK

Reinforced insulation

mass production

SPM2402SJ

24V

0.15A

OK

Basic insulation

samplePart No.

Output voltage

Rated load

SPM0307SJ

3.3V

SPM0507SJ

Output(Single or Multi)

1

Insulation

StatusProduct Lineup

1A

OK

Reinforced insulation

mass production

1A

OK

Reinforced insulation

mass production

0.5A

OK

Reinforced insulation

mass production

OK

Reinforced insulation

mass production

0.5A

OK

Reinforced insulation

sample

1A

OK

Reinforced insulation

mass production

24V

0.5A

OK

Reinforced insulation

mass production

8V

0.05A

12V

0.5A

OK

Reinforced insulation

development

12V0.2A

24V

0.1A

OK

Reinforced insulation

Sample

13.5V

0.3A

16V

0.12A

OK

Basic insulation

SampleRated load

EPM0310SJ

3.3V

EPM0510SJ

5V

EPM1210SJ
EPM1505SJ
EPM1510SJ
EPM2405SJ
EPM120806D

EPM122410D

EPM141626D

Insulation(Between Pri-Sec)

Output voltage

EPM1205SJ

OutputRoHS
compliantPart No.

12V

15V

1A

(Single or Multi)

12Status

Product Lineup

OutputInsulation

RoHS
compliant(Between Pri-Sec)

9A

OK

Reinforced insulation

development

5V

8A

OK

Reinforced insulation

mass production

BPM1234SJ

12V

3.4A

OKReinforced insulation

mass production

BPM1527SJ

15V

2.7A

OK

Reinforced insulation

mass production

BPM2417SJ

24V

1.7A

OK

Reinforced insulation

mass production

Part No.

Output voltage

Rated load

BPM0390SJ

3.3V

BPM0580SJ(Single or Multi)

1Status

Functions
DC OUT

DC IN

Internal parts and functions

Diode

OVP
Vcc

Insulationtransformer

OCP
FETControl
IC・ Insulation Transformer
・ Isolated Transformer （FET）
・ IC control
・ Output rectifier diode・ Photo-coupler
・ Output voltage detection circuit・ Primary side control circuit
・ Over voltage protection
・ Over current protection
・ Heating protection circuit

Voltagesensing

Photo-coupler

OTP

Switching Power Supply can be easily createdPowerEPM
ModuleFeatures

１．Easy to design compact AC/DC due to small number of external components
２． Potential design evaluation time savings; EMC, open/short circuit testing, & etc.
３． Enables significant reduction in power consumption of no-load and light load
４． Corresponding world wide input and PFC output voltage
５． Unique Tamura design insures significant reduction in ‘buzz’ under light-loadconditions for lower noise levelhttp://www.tamura-ss.co.jp/electronics/en/