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參數(shù)資料
| 型號： | SA9108F |
| 廠商： | SAMES |
| 元件分類： | 電能質(zhì)量分析儀 |
| 英文描述： | TWO PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT |
| 中文描述： | 兩相雙向功率/電能計(jì)量IC瞬時脈沖輸出 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 105K |
| 代理商： | SA9108F |
SA9108F
sames
7/12
5.
Pulse Output Signals
The calculated power is divided down to a pulse rate 64Hz, for rated conditions on
FOUT1 and FOUT2.
Two formats of pulse output signals are available which provide both power/energy
and direction information.
The direction of the energy flow is defined by the mark/space ratio on FOUT1 while
the pulse width defines the direction on FOUT2.
An integrated anticreep function ensures no metering at zero line currents.
The formula for calculating the Output Frequency (f) is given below:
f = 11.16
* FOUTX *
3.58MHz 2 * I
R
Where FOUTX
= Nominal rated frequency (64Hz)
FOSC
= Oscillator frequency (2MHz ...... 4MHz)
I
I1
, I
I2
= Input currents for current sensor inputs (16μA at rated line current)
I
V1
, I
V2
= Input currents for voltage sensor inputs (14μA at rated line voltage)
I
R
= Reference current (typically 50μA)
FOSC
*
(I
I1
I
V1
) + (I
I2
I
V2
)
2
DR-00944
Wave form on DIR
m m
Wave form on FOUT1
Wave form on FOUT2
Positive Energy Flow
pp = 1.1ms
pp
t
t
m m
pp
t
m m
t
m m
pn = 3.4ms
Negative Energy Flow
pn
t
t
pn
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