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PDF BL0930 Data sheet ( Hoja de datos )
| Número de pieza | BL0930 | |
| Descripción | Single Phase Energy Meter IC | |
| Fabricantes | SHANGHAI BELLING | |
| Logotipo |  |
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FEATURES
BL0930 Single Phase Energy Meter IC
with Integrated Oscillator
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 oscillator
On-Chip voltage reference of 2.5V±8% (typical
temperature coefficient of 30ppm/℃)，with external
overdrive capability
Single 5V supply
Interrelated patents are pending
The BL0930 is a low cost, high accuracy, high
stability, simple peripheral circuit electrical energy
meter IC. The meter based on the BL0930 is intended
for using in single-phase, two-wire distribution
systems.
The BL0930 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, BL0930
supplies the negative orientation indication on Pin12
(REVP). Therefore, the meter using the BL0930 has
great capability to avoid fault condition.
The BL0930 supplies average real power
information on the low frequency outputs F1 (Pin16)
and F2 (Pin15). These logic outputs may be used to
directly drive an electromechanical counter and
two-phase stepper motors. The CF (Pin14) logic
output gives instantaneous real power information.
This output is intended to be used for calibration
purposes or interface to an MCU.
The BL0930 adopts the technology of SLim and
decreases greatly the static power. This technology
also decreases the request for power supply.
BL0930 thinks over the stability of reading
error in the process of calibration.. An internal no-load
threshold ensures that the BL0930 does not exhibit
any creep when there is no load.
BLOCK DIAGRAM
VDD 1
16 F1
V2P 2
V2N 3
15 F2
14 CF
V1N 4
V1P 5
BL0930
13 NC
12 REVP
GND 6
11 G
VREF 7
10 S0
SCF 8
9 S1
SOP 16
V1P
V1N
V2P
V2N
VREF VDD
current
sampling
voltage
reference
analog to
digital
high
pass
filter
voltage
sampling
analog to
digital
high
pass
filter
internal
oscillator
BL0930
digital
multiplication
low
pass
filter
power
detector
digital to
frequency
and output
logical
control
REVP
CF
F1
F2
SCF S1
S0 G
http://www.belling.com.cn
-1-
Total 11 Pages
12/17/2009
1 page  
BL0930
TIMING CHARACTERISTIC
Single Phase Energy Meter IC
with Integrated Oscillator
(VDD =5V, GND =0V, On-Chip Reference, On-Chip Oscillator , Temperature range: -40~+85°C)
Parameter Value
Comments
t1 144ms F1 and F2 pulse-width (Logic Low). When the power is low, the
t1 is equal to 144ms; when the power is high, and the output
period exceeds 550ms, t1 equals to half of the output period.
t2 F1 or F2 output pulse period.
t3 ½ t2 Time between F1 falling edge and F2 falling edge.
t4 71ms CF pulse-width (Logic high). When the power is low, the t4 is
equal to 71ms; when the power is high, and the output period
exceeds 180ms, t4 equals to half of the output period.
t5 CF Pulse Period. See Transfer Function section.
t6 CLK/4 Minimum Time Between F1 and F2.
Notes:
1) CF is not synchronous to F1 or F2 frequency outputs.
2) Sample tested during initial release and after any redesign or process change that may affect this
parameter.
THEORY OF OPERATION
Principle of Energy Measure
In energy measure, the power information varying with time is calculated by a direct
multiplication of the voltage signal and the current signal. Assume that the current signal and the
voltage signal are cosine functions; Umax, Imax are the peak values of the voltage signal and the
current signal; ωis the angle frequency of the input signals; the phase difference between the
current signal and the voltage signal is expressed asφ. Then the power is given as follows:
p(t) = U max cos(wt) × I max cos(wt + ϕ )
If φ=0:
http://www.belling.com.cn
-5-
Total 11 Pages
12/17/2009
5 Page 
BL0930 Single Phase Energy Meter IC
with Integrated Oscillator
SCF S1 S0 Fz Max Frequency
of F1, F2 (Hz)
AC
1 0 0 1.7
0.36
0 0 0 1.7
0.36
1 0 1 3.4
0.72
0 0 1 3.4
0.72
1 1 0 6.8
1.44
0 1 0 6.8
1.44
1 1 1 13.6
2.88
0 1 1 13.6
2.88
CF Max Frequency (Hz)
AC
128×F1,F2=46.08
64×F1,F2=23.04
64×F1,F2=46.08
32×F1,F2=23.04
32×F1,F2=46.08
16×F1,F2=23.04
16×F1,F2=46.08
2048×F1,F2=5.9K
Package Dimensions
1、SOP16
Notice： Sample tested during initial release and after any redesign or process change
that may affect parameter. Specification subject to change without notice. Please ask
for the newest product specification at any moment.
http://www.belling.com.cn
- 11 -
Total 11 Pages
12/17/2009
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet BL0930.PDF ] | |
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