参数资料
| 型号： | ADP1048-600-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/84页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL ADP1048-600 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，功率因数校正 |
| 已用 IC / 零件： | ADP1048 |
| 主要属性： | 600W，385V 输出，85~265VAC 输入 |
| 已供物品： | 板 |
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页当前第17页第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页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页
Data Sheet
POWER FACTOR CORRECTION CONTROL LOOP
The ADP1047 / ADP1048 implement the average current mode
power factor correction control loop using a traditional multi-
plier approach. The implementation of the loop is digital, and
all the signals are converted from analog to digital before they
are processed by the control loop. Σ-Δ ADCs are used to achieve
high performance, cost-effective implementation. Each ADC
has its own dedicated voltage reference.
DIGITAL COMPENSATION FILTERS
The ADP1047 / ADP1048 are digital PFC controllers with ac power
monitoring. They are implemented in the digital domain using
a dedicated state machine, which allows the user to program the
ADP1047/ADP1048
The frequency gains and zero locations can all be programmed
individually to tailor the loop response to the application. It is
recommended that the Analog Devices, Inc., GUI software be
used to program the filter (see the Software GUI section). The
GUI displays the filter response in Bode plot format and can be
used to calculate all stability criteria for the power supply.
Optimized Compensation Filters
Instead of a single programmable compensation filter, the
the dynamic response of the control loop can be tailored to
optimize different operating conditions.
loop response specifically, with no need for external loop
compensation.
?
?
?
Low line current filter
High line current filter
Fast voltage compensation filter
V REF is the digital reference voltage setting; V FB is the sensed feed-
back voltage of the output. The difference between V REF and V FB
is processed first by the voltage loop filter (H V ). Its output, V EA ,
is then multiplied by the instantaneous rectified input voltage,
V AC , and divided by the square of the rms value of V AC . The result,
I REF , is used as the reference signal for the current. The output of
the current loop filter (H I ) is the duty cycle command. The
mathematical expression is
The ADP1047 / ADP1048 can be configured to switch auto-
matically between the high and low line filters when the rms
value of the ac line crosses the programmed threshold between
the high and low lines. (The high line threshold is programmed
in Register 0xFE35; the low line threshold is programmed in
Register 0xFE36.)
The ADP1047 / ADP1048 check for the value of the rms input
V AC _ RMS
I REF =
2
V EA × V AC
voltage at each half line cycle. When a transition between the
high and low line threshold is detected, the part waits for four
full line cycles before switching to the correct filter at the zero
H(z) = k × b × ?
( z ? 1 )
Both the voltage loop and current loop digital compensating
filters, H V (z) and H I (z), are programmable. The filter transfer
function in the digital domain is
? ?
? z ? a ?
256 ?
where:
a is the filter zero.
b is the filter gain.
k is related to the switching frequency.
crossing of the input line cycle. This is done to avoid spurious
transitions due to a missing or distorted voltage line cycle.
During soft start, one of four combinations of filters can be
used, depending on whether the fast loop mode is enabled
and whether the high line or low line is detected for soft start
(see Table 8).
V FB
V AC
V 2AC_RMS
I L
V REF +
–
H V (z)
V EA
I REF
+
–
H I (z)
DUTY CYCLE
Figure 14. Control Loop Digital Filters
Table 8. Summary of the PFC Digital Compensation Filters for Soft Start
Line Filter
High Line
Low Line
Normal Compensation Filter
High line current filter, normal voltage filter
Low line current filter, normal voltage filter
Rev. 0 | Page 17 of 84
Fast Voltage Compensation Filter
High line current filter, fast voltage filter
Low line current filter, fast voltage filter
相关PDF资料 |
PDF描述 |
|---|---|
| ADP190CB-EVALZ | BOARD EVAL ADP190 |
| ADP191CB-EVALZ | EVAL BOARD FOR ADP191 |
| ADP194CB-EVALZ | BOARD EVAL FOR ADP194ACBZ |
| ADP195CP-EVALZ | BOARD EVAL FOR ADP195ACPZ |
| ADP197CB-EVALZ | BOARD EVAL FOR ADP197ACBZ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1048ARQZ-R7 | 功能描述:IC DGTL PFC CTRLR 24QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - PFC（功率因数修正） 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电（DCM） 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6 |
| ADP1048DC1-EVALZ | 功能描述:DAUGHTERCARD ADP1048 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| ADP1048WARQZ-R7 | 功能描述:PFC IC Average Current 30kHz ~ 400kHz 24-QSOP 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:有效 模式:平均电流 频率 - 开关:30kHz ~ 400kHz 电流 - 启动:- 电压 - 电源:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-SSOP（0.209"，5.30mm 宽） 供应商器件封装:24-QSOP 标准包装:1,000 |
| ADP1050ACPZ-R7 | 功能描述:Power Supply Controller Power Supply Controller/Monitor 20-LFCSP-WQ (4x4) 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 应用:电源控制器/监控器 电压 - 输入:0 V ~ 1.6 V 电压 - 电源:3 V ~ 3.6 V 电流 - 电源:28.5mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:20-WFQFN 裸露焊盘，CSP 供应商器件封装:20-LFCSP-WQ（4x4） 标准包装:1 |
| ADP1050ACPZ-RL | 功能描述:Power Supply Controller Power Supply Controller/Monitor 20-LFCSP-WQ (4x4) 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:在售 应用:电源控制器/监控器 电压 - 输入:0 V ~ 1.6 V 电压 - 电源:3 V ~ 3.6 V 电流 - 电源:28.5mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:20-WFQFN 裸露焊盘，CSP 供应商器件封装:20-LFCSP-WQ（4x4） 标准包装:5,000 |
发布紧急采购，3分钟左右您将得到回复。