Discussion on the various aspects of Smart Metering technology and its role in sustainability of resources.

1. 1 Smart Meter Solutions Confidential Proprietary
Smart Metering
Power Management & Power Line Communications

2. 2 Smart Meter Solutions Confidential Proprietary
Power Management Segment of
Smart Meters

3. 3 Smart Meter Solutions Confidential Proprietary
Requirements for a Power Block
Smart Meters
Smart Meters require a Power Management block which could
provide:
1. Flexible interface to support wide range of Input voltage
ranges
2. Improved efficiency at all load conditions
3. Enhanced Protection against Faults with Low Input Voltage
4. Improved EMI over the entire load
5. Eliminate noise
6. Ability to adjust output current protection based on output
power demand

4. 4 Smart Meter Solutions Confidential Proprietary
Solution ??
A pre-regulator - added to a conventional SMPS and is inserted between the
AC supply rectification and the input bulk capacitor
Solution 1!!
107x Family
Solution 2!!
Solution 3!!

5. 5 Smart Meter Solutions Confidential Proprietary
Solution 1 : NCP107x Family

6. 6 Smart Meter Solutions Confidential Proprietary
Solution 2- NCP125X Family

7. 7 Smart Meter Solutions Confidential Proprietary
Solution 3

8. 8 Smart Meter Solutions Confidential Proprietary
I/OProtection
Power
AmpVoltage
Protection
Amp
Smart Card
Interface
Metering
DSP/
Controller
Current
Sensor
(Power)
I/O
Interface
Current
Sensor
(Neutral)
LCD
Backlighting
Control
Panel
Voltage
Sensor
Memory
Infrared
Receiver
RF
Transceiver
Voltage
Regulation
(Linear,
Switching)
Smart Electric Meter
1.8 V
3.3 V
12 V
Display
Breaker
RS-485
L1
Neutral
User Interface
Infrared Remote In
RS-232
GPRS/GSM/CDMA
Card Slot
ResetPower Line
Modem
Output
Rectification/
Sync Rect
Input
Bridge
Rectification
Voltage
Regulation
(Switching)
Transformer
USB
Ethernet
Euridis
M-Bus
L2
L3

9. 9 Smart Meter Solutions Confidential Proprietary
Pre-Regulator & Flyback E-meter SMPS
200 V Pre-regulator PWM Flyback
130 kHz
SOT-223
NCP1075
Vac input
12 V VDC output
4 inter-connections

10. 10 Smart Meter Solutions Confidential Proprietary
Power Line Communications

11. 11 Smart Meter Solutions Confidential Proprietary
What is PLC?? Basics
“Power-line communication (PLC) carries data on a conductor that is also
used simultaneously for AC electric power transmission or electric power
distribution to consumers”
Power Line Communication (PLC) is a communication technology
that sends data over existing power cables

12. 12 Smart Meter Solutions Confidential Proprietary
How does PLC work?
• PLC systems operate by adding a modulated carrier signal
to the wiring system (AC or DC)
• Schemes for Modulating the Carrier Signal:
– (S)FSK : (Spread) Frequency Shift Keying
– BPSK : Binary Phase Shift Keying (BPSK)
– OFMD : Orthogonal Frequency Division Multiplexing
Modulated Carrier Signal
Power Line

13. 13 Smart Meter Solutions Confidential Proprietary
PLC Categories and Features
• Broadband PLC:
– Appropriate for high-speed broadband network connections such as
to the Internet
– Operates at higher frequencies (1.8–250 MHz)
– High data rates (up to 100s of Mbps) and is used in shorter-range
applications
• Narrowband PLC:
– Useful for applications requiring narrowband control or low-
bandwidth data collection where low cost and high reliability are
essential
– Operates at lower frequencies (3–500 kHz)
– Lower data rates (up to 100s of kbps), and has longer range (up to
several kilometers), which can be extended using repeaters

14. 14 Smart Meter Solutions Confidential Proprietary
Solution for Narrowband PLC

15. 15 Smart Meter Solutions Confidential Proprietary
AMIS49587 Key Features
 Data communication on power line up to 2400 Bauds
 Complete handling of protocol layers (PHY to MAC)
 Compliance to standards IEC61334-5-1 / EN 50065 and specific ERDF requirement
 Proven with 175Hz TCFM signaling
 Best in Class Analog demodulation chain
 Extremely robust transmission (noise immunity and input sensitivity)
 PHY dedicated to S-FSK modulation with programmable interval
 Programmable carriers in range of 9kHz-115kHz, by steps of 10Hz
 Programmable frequency spread : typical separation of 10kHz
 Extremely robust PLL, Dynamic range: 104 dB
 Half duplex asynchronous communication
 for mains frequency 50Hz => programmable data rate 300/600/1200/2400 bauds
 Embedded Support chorus transmission (repetition with credit)
 ARM MCU for advanced filtering and MAC implementation
 Interfacing to the outside
 Operates from a single 3,3V power supply
 Programmable SCI Baud rate to Application µC 4800/9600/19200/38400 baud

16. 16 Smart Meter Solutions Confidential Proprietary
For more detail regarding ON Semiconductor’s
Smart Meter solutions, please contact your
local ON Semiconductor sales representative
or authorized distributor.
For more detail regarding ON Semiconductor’s
Smart Meter solutions, visit us on the web at
www.onsemi.com.