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参数资料
| 型号： | QPO-2EVAL1 |
| 厂商： | Vicor Corporation |
| 元件分类： | DC/DC变换器 |
| 英文描述： | Evaluation Board for QPO-2 Active Output Filter |
| 中文描述： | 评估局QPO - 2有源输出滤波器 |
| 文件页数： | 1/2页 |
| 文件大小： | 69K |
| 代理商： | QPO-2EVAL1 |
Picor Corporation www.picorpower.com
QPO-2 EVAL1 Data Sheet Rev. 1 Page 1 of 2
P
P R
R E
E L
L II M
M II N
N A
A R
R Y
Y
The QPO-2-EVAL1 board provides an easy to use
evaluation platform for testing the QPO-2L in a low-
voltage system. A filtered voltage range of 0.3 Vdc to 5.5
Vdc at output load currents up to 20A can be
accomplished. A low current bias supply is required at the
VAUX input in the range of 7 to 12 volts respectively to
the output voltage range. The board comes with a QPO-2L
and some essential external components pre-mounted.
Please refer to the QPO- 2L datasheet for product details.
Terminals for horizontal or vertical mounting are also
provided. The user must select component values
dependant upon their system needs.
RCP will preset the QPO-2’s reference voltage to a value
close to the desired steady-state value. This reduces the
time required for the QPO-2’s output to reach the
steadystate output voltage. There is a provision for a start-
up circuit (Q1 RDLY D1 CDLY) if the initial headroom
voltage needs to start from zero and increase gradually to
the set headroom voltage. Remote sense components (CRS
RRS), Figure 3 of the product datasheet, are mounted on
the evaluation board.
When remote sensing is not used RSC1 is the current
programming resistor that determines the current sourced
by the QPO-2’s Adjust+ pin to drive the TRIM pin of a
converter. The RSL resistor shown in Figure 4 of the
product datasheet (not on the evaluation board) can be
used to limit the correction current sourced from the
Adjust+ circuit if needed during start-up preventing the
converter from tripping OVP.
RHR is the headroom voltage setting resistor that will
determine the voltage dropped across the QPO-2. The
RSA1 resistor is for the slope-adjust option, which can be
used to reduce the amount of voltage across the QPO-2
depending on load current. This reduced drop in voltage
will result in a lower power loss across the QPO-2
providing greater efficiency but lower attenuation. An
optional capacitor, CHR, can be added to extend the low-
frequency attenuation range of the QPO-2.
The RP resistor connects the QPO-2’s peak detection circuit
to the input voltage rail. The peak detector will adapt the
headroom voltage by adding half the peak-to-peak ripple
voltage to the headroom. RP is required. The peak
detection can be disabled adding a filter capacitor CP to
the board. The full product datasheet with equations to
calculate these component values plus more detailed
explanations of their functions, can be found at
www.picorpower.com.
QPO OUT
8
SLOPE
ADJ
QPO OUT
6
SC SET
5
QPO OUT
7
QPO OUT
17
VAUX
10 9
VREF
GND
1
2
3
4
ADJUST+/-
16
PEAK IN
15
QPO IN
14
RCP/RON
18
QPO IN
13
QPO IN
12
QPO IN
11
REFGND
GND
19
GND
20
QPO-2
RSA 1
RSC1
RHR
VREF
CP
RP
IRLML6401
Q1
VREF
QPO_IN
Low Voltage Start-up Circuit
QPO_OUT
J1
QPO_IN
J6
PEAKIN
ADJUST
ADJUST/SC
GND
J9
GND
J10
RDLY
20 K
J2
VAUX
J5
GND
J5
QPO_OUT
SENSE+
15 μF
CRS
QPO IN
RCP
QPO_IN
QPO_OUT
CHR
VREF
J3
CDLY
0.1 μF
MA111
D1
RRS
10
J7
Figure 1 - Evaluation board schematic
QP0-2 EVAL1
QuietPower
Evaluation Board for QPO-2 Active Output Filter
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相关代理商/技术参数 |
参数描述 |
|---|---|
| QPO-2-EVAL1 | 功能描述:EVALUATION BOARD FOR QPO-2 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:Picor®, QUIETPOWER® 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| QPO-2L | 制造商:POWERBOX 制造商全称:Powerbox 功能描述:OUTPUT RIPPLE ATTENUATOR |
| QPO-2LZ | 功能描述:0.3-5.5V 20A OUT RIP ATTENUATOR RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:Picor®, QUIETPOWER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| QPO-2LZ-01 | 功能描述:IC INTERFACE FILTER RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:Picor®, QUIETPOWER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| QPP-003 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:60W, 869-894 MHz Class AB Power Stage |
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