参数资料
| 型号： | CDB5461AU |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 18/44页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL & SOFTWARE CS5461A |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | CS5461A |
| 主要属性： | 1 相，能量至频率输出 |
| 次要属性： | GUI、USB、SPI、Microwire 接口 |
| 已供物品： | 板 |
| 产品目录页面： | 754 (CN2011-ZH PDF) |
| 相关产品： | CS5461A-ISZR-ND - IC ENERGY METERING 1PHASE 24SSOP 598-1095-5-ND - IC ENERGY METERING 1PHASE 24SSOP |
| 其它名称： | 598-1552 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
CS5461A
t edg e
E1
E2
...
...
P o s it iv e E n e r g y
N e g a t iv e E n e r g y
Figure 6. Stepper Motor Format on E1 and E2
...
...
energy level, the energy output pins (E1 and E2) alter-
nate changing states (see Figure 6). The duration
(t edge ) between the alternating states is defined by the
transfer function:
alternating polarity occurs during the accumulation peri-
od (e.g. random noise at zero power levels), the accura-
cy of the registered energy will be maintained.
For high-frequency pulse output formats (i.e. normal
----------------------
t
edge
? sec ?
=
1
FREQ E
and alternate pulse formats), the active power is accu-
mulated over time until a ? 8x buffer is defined. Then,
when the designated energy level is reached, a pulse is
= ---------------------------------------------
? ? MCLK ? ? K ? ? 1024
FREQ E ? VREFIN
100 ? 2.5
0.132 ? 10 ? 0.1125 ? 10
The direction the motor will rotate is determined by t he
order of t he state changes. When energy is positive, E1
will lead E2. When energy is negative, E2 will lead E1.
The Pulse Width Register (PW) does not affect the step-
per motor format.
5.4.5 Pulse Output E3
The pulse output E3 is designed to assist with meter cal-
ibration. The pulse-output frequency of E3 is directly
proportional to the active power calculated from the in-
put signals. E3 pulse frequency is derived using a sim-
ular transfer function as E1, but is set by the value in the
PulseRateE 3 Register .
The E3 pin outputs negative and positive energy, but
has no energy direction indicator.
The pulse width of E3 is configurable. The PulseWidth
register defines the pulse width of E3 in units of 1/OWR
or:
PulseWidth
t pw
The default value is 0.
5.4.6 Anti-creep for the Pulse Outputs
Anti-creep allows the measurement element to maintain
an energy level, such that when the magnitude of the
accumulated active power is below this level, no energy
pulses are output. Anti-creep is enabled by setting bit
FAC in the Control Register for E3 and bit EAC in the
Control Register for E1 and E2.
For low-frequency pulse output formats (i.e. mechanical
counter and stepper motor formats), the active power is
accumulated over time. When a designated energy lev-
el is reached (determined by the transfer function) a
pulse is generated on E1 and/or E2. If active power with
18
generated on E1 and/or E2. For pulse outputs with high
frequencies and power levels close to zero, the extend-
ed buffer prevents random noise from being registered
as active energy.
5.4.7 Design Examples
EXAMPLE #1:
The maximum rated levels for a power line meter are
250 V rms and 20 A rms. The required number of puls-
es per second on E1 is 100 pulses per second (100 Hz),
when the levels on the power line are 220 V rms and
15 A rms.
With a 10x gain on the voltage and current channel the
channel inputs, the maximum rated rms input levels will
register 0.6 in V RMS and I RMS by design. Therefore the
voltage level at the channel inputs will be 150 mV rms
when the maximum rated levels on the power lines are
250 V rms and 20 A rms.
Solving for PulseRateE 1,2 using the transfer function:
2
VIN ? VGAIN ? IIN ? PF
PulseRateE 1 , 2 = -------------------------------------------------------------------
Therefore with PF = 1 and
VIN = 220V ? ? ? 150mV ? ? ? 250V ? ? = 132mV
IIN = 15A ? ? ? 150mV ? ? ? 20A ? ? = 112.5mV
the PulseRateE 1,2 Register is set to:
2
PulseRateE = ----------------------------------------------------------------- = 420.8754Hz
DS661F3
相关PDF资料 |
PDF描述 |
|---|---|
| CDB5466U | BOARD EVAL & SOFTWARE CS5466 ADC |
| CDB5467U | BOARD EVAL FOR CS5467 ADC |
| CDB5560-2 | DEV BOARD FOR CS5560 W/SE INPUT |
| CDB5571-2 | DEV BOARD FOR CS5571 W/SE INPUT |
| CDB8422 | BOARD EVAL FOR CS8422 RCVR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CDB5461AU-Z | 制造商:Cirrus Logic 功能描述:PB-FREEEVAL BOARD FOR CS5461 WITH USB - Bulk |
| CDB5462 | 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR CS5462 - Bulk |
| CDB5463U | 功能描述:数据转换 IC 开发工具 Eval Bd Sngl-Phase Pow/Energy RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| CDB5463U-Z | 功能描述:EVAL BOARD USB FOR CS5463 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| CDB5464U | 功能描述:数据转换 IC 开发工具 Eval Bd 3-Ch Sngl-Phs Pow/Energy RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
发布紧急采购，3分钟左右您将得到回复。