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PDF BL6503 Data sheet ( Hoja de datos )
| Número de pieza | BL6503 | |
| Descripción | Single Phase Energy Meter IC | |
| Fabricantes | SHANGHAI BELLING | |
| Logotipo |  |
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BL6503 Single Phase Energy Meter IC
FEATURES
DESCRIPTION
High accuracy, less than 0.1% error over a
dynamic range of 500 : 1
Exactly measure the real power in the positive
orientation and negative orientation, calculate the
energy in the same orientation
A PGA in the current channel allows using small
value shunt and burden resistance
The low frequency outputs F1 and F2 can
directly drive electromechanical counters and two
phase stepper motors and the high frequency output
CF, supplies instantaneous real power, is intended for
calibration and communications
The logic outputs REVP can be used to indicate a
potential orientation
Low static power (typical value of 15mW).
The technology of SLiM (Smart–Low–current–
Management ) is used.
On-Chip power supply detector
On-Chip anti-creep protection
On-Chip voltage reference of 2.42V ± 8%
(typical temperature coefficient of 30ppm/℃)，with
external overdrive capability
Single 5V supply
Credible work, working time is more than twenty
years
Interrelated patents are pending
The BL6503 is a low cost, high accuracy, high
stability, simple peripheral circuit electrical energy
meter IC. The meter based on the BL6503 is intended
for using in single-phase, two-wire distribution
systems.
The BL6503 adopts the oversample technology
and digital signal processing technology. It can
exactly measure the real power in the positive
orientation and negative orientation and calculate the
energy in the same orientation. Moreover, BL6503
supplies the negative orientation indication on Pin20
(REVP). Therefore, the meter using the BL6503 has
great capability to avoid fault condition.
The BL6503 supplies average real power
information on the low frequency outputs F1 (Pin23)
and F2 (Pin24). These logic outputs may be used to
directly drive an electromechanical counter and
two-phase stepper motors. The CF (Pin22) logic
output gives instantaneous real power information.
This output is intended to be used for calibration
purposes or interface to an MCU.
The BL6503 adopts the technology of SLim and
decreases greatly the static power. This technology
also decreases the request for power supply.
BL6503 thinks over the stability of reading
error in the process of calibration.. An internal no-load
threshold ensures that the BL6503 does not exhibit
any creep when there is no load.
BLOCK DIAGRAM
DVDD 1
AC/DC 2
AVDD 3
NC 4
V1P 5
V1N 6
V2N 7
V2P 8
RESET 9
VREF 10
AGND 11
SCF 12
BL6503
24 F1
23 F2
22 CF
21 DGND
20 REVP
19 NC
18 CLKOUT
17 CLKIN
16 G0
15 G1
14 S0
13 S1
DIP/SSOP 24
V1P
V1N
V2P
V2N
VREF
AVDD
voltage
reference
current
sampling
analog to
digital
high
pass
filter
voltage
sampling
analog to
digital
high
pass
filter
power detector
BL6503
digital
multiplication
low
pass
filter
digital to
frequency
and
output
logical control
REVP
CF
F1
F2
G0 G1
AC/DC RESET SCF S0 S1
http://www.belling.com.cn
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Total 1 Pages
3/28/2007
1 page  
BL6503 Single Phase Energy Meter IC
Pencentage Error = Energy Re gistered by the BL6503 − True Energy ×100%
True Energy
2) Nonlinear Error
The Nonlinear Error is defined by the following formula:
eNL%＝[(Error at X-Error at Ib) / (1+Error at Ib )]*100%
When V(v)= ±110mV, cosϕ=1, over the arrange of 5%Ib to 800%Ib, the nonlinear error should be
less than 0.1%.
3) Positive And Negative Real Power Error
When the positive real power and the negative real power is equal, and V(v) =±110mV, the test
current is Ib, then the positive and negative real power error can be achieved by the following
formula:
eNP%=|[(eN%-eP%)/(1+eP%)]*100%|
Where: eP% is the Positive Real Power Error, eN% is the Negative Real Power Error.
4) Gain Error
The gain error of the BL6503 is defined as the difference between the measured output frequency
(minus the offset) and the ideal output frequency. It is measured with a gain of 1 in channel V1.
The difference is expressed as a percentage of the ideal frequency. The ideal frequency is obtained
from the BL6503 transfer function.
5) Gain Error Match
The gain error match is defined as the gain error (minus the offset) obtained when switching
between a gain of 1 and a gain of 2, 8, or 16. It is expressed as a percentage of the output
frequency obtained under a gain of 1. This gives the gain error observed when the gain selection is
changed from 1 to 2, 8 or 16.
6) Power Supply Monitor
BL6503 has the on-chip Power Supply monitoring The BL6503 will remain in a reset
condition until the supply voltage on AVDD reaches 4 V. If the supply falls below 4 V, the BL6503
will also be reset and no pulses will be issued on F1, F2 and CF.
TIMING CHARACTERISTIC
http://www.belling.com.cn
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Total 5 Pages
3/28/2007
5 Page 
BL6503 Single Phase Energy Meter IC
Mode SCF S1
S0
CF/F1 (or F2)
1100
128
2000
64
3101
64
4001
32
5110
32
6010
16
7111
16
8011
2048
Because of its relatively high pulse rate, the frequency at this logic output is proportional to the
instantaneous real power. As is the case with F1 and F2, the frequency is derived from the output
of the low-pass filter after multiplication. However, because the output frequency is high, this real
power information is accumulated over a much shorter time. Hence less averaging is carried out in
the digital-to-frequency conversion. With much less averaging of the real power signal, the CF
output is much more responsive to power fluctuations.
GAIN SELECTION
By select the digital input G0 and G1 voltage (5V or 0V), we can adjust the gain of current
channel. We can see that while increasing the gain, the input dynamic range is decreasing.
G1
G0
Gain
Maximum Differential
Signal
001
±660mV
012
±330mV
108
±82mV
1 1 16
±41mV
ANALOG INPUT RANGE
The maximum peak differential signal on Voltage Channel is ± 660 mV, and the common-mode
voltage is up to 100 mV with respect to AGND.
The analog inputs V1A, V1B, and V1N have the same maximum signal level restrictions as V2P
and V2N. However, The Current Channel has a programmable gain amplifier (PGA) with
user-selectable gains of 1, 2, 8, or 16. These gains facilitate easy transducer interfacing. The
maximum differential voltage is ±660 mV and the maximum common-mode signal is ±100
mV.
The corresponding Max Frequency of CF/F1/F2 is shown in the following table.
SCF S1 S0 Fz Max Frequency
CF Max Frequency (Hz)
of F1, F2 (Hz)
DC AC
DC
AC
1 0 0 1.7 0.72 0.36 128×F1,F2=92.16 128×F1,F2=46.08
0 0 0 1.7 0.72 0.36 64×F1,F2=46.08 64×F1,F2=23.04
1 0 1 3.4 1.44 0.72 64×F1,F2=92.16 64×F1,F2=46.08
0 0 1 3.4 1.44 0.72 32×F1,F2=46.08 32×F1,F2=23.04
http://www.belling.com.cn
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Total 11 Pages
3/28/2007
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet BL6503.PDF ] | |
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