Datasheet > QPO-2EVAL1

QPO-2EVAL1

更新时间： 2024-11-29 22:40:59

品牌	Logo	应用领域
VICOR		/
页数	文件大小	规格书
2页	70K
描述
Evaluation Board for QPO-2 Active Output Filter

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

QPO-2EVAL1 数据手册

P R E L I M I N A R Y

QP0-2 EVAL1

QuietPower^™

Evaluation Board for QPO-2 Active Output Filter

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.

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.

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.

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.

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

QPO_IN

VAUX

QPO_OUT

RCP

QPO_IN

Low Voltage Start-up Circuit

QPO IN

QPO OUT

QPO_OUT

QPO_IN

RDLY

CRS

20 K

PEAKIN

ADJUST

15 μF

PEAK IN

SC SET

RSC1

ADJUST+/-

ADJUST/SC

IRLML6401

MA111

GND

QPO-2

SENSE+

RRS

CDLY

0.1 μF

GND

QPO_OUT

VREF

GND

J10

RSA 1

CHR

GND

RHR

VREF

Figure 1 - Evaluation board schematic

Picor Corporation • www.picorpower.com

QPO-2 EVAL1 Data Sheet Rev. 1 Page 1 of 2

中文翻译

下载PDF

与QPO-2EVAL1相关器件

型号	品牌	获取价格	描述	数据表
QPO-2L	VICOR	获取价格	QPO-2L Low Voltage Output Ripple Attenuator
QPO-2L	POWERBOX	获取价格	OUTPUT RIPPLE ATTENUATOR
QPO-2LZ	VICOR	获取价格	暂无描述
QPO-2LZ-01	VICOR	获取价格	Variable Attenuator, ROHS COMPLIANT, SIP-16
QPP-003	ETC	获取价格	60W, 869-894 MHz Class AB Power Stage
QPP-008	ETC	获取价格	35W, 925-960MHz Class AB Driver Stage
QPP-015	ETC	获取价格	QuikPAC Module Data
QPP-023	ETC	获取价格	QuikPAC Module Data
QPP-029	ETC	获取价格	QuikPAC Module Class AB Driver Stage
QPP2209	TRIQUINT	获取价格	8 â 12 GHz 40 Watt VPIN Limiter

与QPO-2EVAL1相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

53
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

42
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

70
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

66

产品中心

服务支持

精选活动

关于我们

帮助中心

QPO-2EVAL1

QPO-2EVAL1 数据手册

与QPO-2EVAL1相关器件

与QPO-2EVAL1相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

QPO-2EVAL1

QPO-2EVAL1 数据手册

与QPO-2EVAL1相关器件

与QPO-2EVAL1相关文章

您还可以找

您在本页遇到什么问题？