The New Trend of Telecom Power Application ------DC Remote ...

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The New Trend of Telecom Power Application

------DC Remote Feeding Power System


. Application Background, Outlook and Application Field

. Main Application Diagram and Topology diagram

. Typical Application Diagram

. Station Device Topologies diagram

. Remote Device Topologies diagram

. Typical Project-Remote Power System

. Project Spec.

. Function Block and Efficiency

. IFX IC and Cool MOS Roadmap

Agenda


Application Background（1）

Background

DC Remote Feeding Power System is used in telecom field. At early period it

was used for PHS (Personal Hand phone System).

As the development of 3G & 4G communication technology, every kind low

power consumption equipment are developed. In particular is widely used for

outdoor base station equipment, Repeater or RRU (Remote Radio Unit). The

requirement of power reliability and safety is much more tight. For telecom-

grade power supply protection needs to consider this type of

communications equipment , DC Remote Feeding Power Systems become

the first choice of telecom carriers.

The volume of RFP is related to RRU. Every RRU need one Remote device.

2-3 Remote devices need one Station Device

Note：RFP= DC Remote Feeding Power System


Application Background （2）

The existing problem in telecom station construction.

Individual power supply、

Individual Watt-meter、

Commercial Electricity

Installment、

Maintenance

Without

Power Server

in remote place

Installment、

Maintenance

Power off for

Maintenance

Unstable Electrical

Network

The problem in BS construction

Safety Cost


Market Outlook

Overall Market Outlook in China

Presently, the demand volume of RFP is only 300K -400K sets in year 2012.

The volume of Station Device will be 300-400K sets, and the volume of Remote

Device is 600-1200K sets. In fact the supply volume don’t reach 50%. The

reason is the product stability can’t meet the requirement.

The average increase rate of RFP by 60% in future 5 years.

Station Device

K Sets

Total K Sets

Remote Device

K Sets

Market Demand Volume


Application Field

Application Field Small 2G/3G Base Station power supply

RRU power supply

Repeater Station power supply

WLAN / WiFi Access Point power supply

EPON(Ethernet Passive Optical Network )’ ONU(Optical Network Unit)

power supply

Video Monitor equipment power supply

Other low power decentralized communication equipment power supply


Application Block Diagram -RRU

Type & Configuration

The main distribution of remote power system, we can see as follows,

Remote

Device

Remote

Device

Remote

Device

Remote

Device

Remote

Device

Remote

Device

Station

Device

Remote

Device


Application Block Diagram- Video Monitor


In addition, The Video Monitor application as bellow,

Remote

Device Station

Device


Application Block Diagram-EPON


In addition, The RFP for EPON application seen as bellow,

Station

Device Cable

Remote

Device

Cable ONU







. Typical Project-Remote Power System

. Project Spec.



Agenda


Station Device Topology Diagram (1)

Topologies of Push-pull DC-DC Converter



Topologies of Boost HB DC-DC Converter



Topologies of Boost FB DC-DC Converter .


Remote Device Topology Diagram (4)

Topologies of Buck HB DC-DC Converter



Topologies of Buck FB DC-DC Converter



Topologies of HB DC-AC Inverter







. Typical Project Remote Power System

. Project Spec.



Agenda


Typical Projects---Function Block Diagram

Function Block


Typical Projects---600W *5U Station Power Spec.

Station Device Power Spec.:

Input Voltage Main Solution Output Voltage Remarks

40VDC--- 60VDC

PWM

Push-pull+IPW60R160C6

240VDC-400VDC

5V&12V

AUX Designed for

Monitor Unit

AUX

ICE3B0565J


Typical Projects---600W /Unit Station Device Power

Station Device Power Function Block:


Typical Projects---1000W*1U Remote Power Spec.

Remote Device Power Product Spec.:

Input Voltage Main Solution Output

Voltage

Remarks

220VDC---

400VDC

PFC

ICE3PCS01G+

IPW60R160C6

400VDC

48VDC

10W/12V

In current design,

most of the customer

adopt the former

telcom power design

topology

PWM

F/BIC+IPW60R160C6

AUX

ICE3B0565J


Typical Projects---1000W Remote Device Power

Remote Device Power Function Block:


IFX IC Solution Introduction

Infineon Solution to DC Remote Feeding Power System

Type Typical

Product

Feature Highlight Remark

s

DCM PFC

TDA4863-2

High power factor & low THD Start up with low

current consumption

CCM PFC

ICE3PCS01G

OVP + Brown-out Integrated digital

voltage loop

compensation

Current

drive=0.75A

PFC+PWM

ICE1CS02G

CCM PFC + 2 Switch

Forward PWM

Current

drive=2A

LLC PWM

ICE1HS01G

Dead time=380ns

Minimum Operation

Frequency is adjustable

externally.

Current

Drive=1.5A

PWM+SR

ICE2HS01G

LLC H/B PWM + SR Adjustable Dead time

from 125ns to 2us

Current

Driver =0.3A


The MOSFET for Station Device Application（1）

Low Voltage Roadmap


The MOSFET for Station Device Application（2）

Low Voltage Roadmap


The MOSFET for Remote Power Application（3）

Low Voltage Roadmap


The MOSFET for Remote Power Application（4）

Low Voltage Roadmap


IFX Solution in Other Field

Where we can see---


Thank You !

The New Trend of Telecom Power Application ------DC Remote ...

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