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參數(shù)資料
| 型號(hào)： | QPO-1Q |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Output Ripple Attenuation SiP |
| 中文描述： | 輸出紋波衰減的SiP |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大?。?/td> | 144K |
| 代理商： | QPO-1Q |
Set your site on PICOR at www.picorpower.com
PRELIMINARY
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
QPO-1 Data Sheet
Page 3 of 8
Application Notes
Figure 1—Typical Configuration using Remote Sensing
Figure 2—Typical Configuration using Trim Control
RHR
Cco
15uF
QPOOUT
9
SLOPE
ADJ
2
7
SC SET 6
CESR 5
8
10
17
VREF
3
GND
1
SC
16
PEAKIN
15
14
18
13
QPOIN
12
11
REFGND
4
GND
19
GND
20
QPO-1
RSA
Load
Cps*
Rps
+
–
{
10
IN*
20k** 4.7uF**
1W
Module
+ OUT
+ Sense
– Sense
Module
– OUT
Trim
C
SC*
*Optional Component
See Description
**Required only for
engineering samples
Qp*
RHR
R
SS
Cco
15uF
SLOPE
ADJ
2
SC SET 6
CESR
5
VREF
3
GND
1
SC
16
REFGND
4
GND
19
GND
20
QPO-1
RSA
Load
+
–
IN*
C
SC*
Module
+ OUT
Trim
Module
– OUT
QPOOUT
9
7
8
10
17
PEAKIN
15
14
18
13
QPOIN
12
11
{
*Optional Component
See Description
20k** 4.7uF**
**Required only for
engineering samples
Functional Description
The QPO-1 is an active power filter that provides attenuation
of power supply output PARD. The measured attenuation
performance over frequency is shown in Figure 3 at output
voltage conditions of 3.3 and 28 Vdc. The user can select
and optimize the attenuation versus power dissipation by
setting the headroom voltage of the active loop.
The conditions in Figure 3 were measured with a low current
headroom setting of 375mV with approximately 100mV
peak-to-peak ripple voltage on the input to the QPO-1. The
remote sense circuit configuration was used as shown in
Figure 1 with the peak detector function enabled. Some
power supplies need to sense the output ripple for proper
operation. Cps couples the unfiltered ripple back to the sense
input while Rps provides the DC feedback to the power
supply from the load.
Typical improvement in output noise and transient
performance with a 3.3V converter is shown in Figure 4.
This measured data demonstrates the reduction in noise and
ripple at the output of the QPO-1 versus the source output as
well as the transient capability stepping from 1 to 10A
load current - the maximum current rating. This particular
converter has sufficient output capacitance and response
time to load changes such that no additional capacitance,CIN,
is needed on the input of the QPO-1 to reach a 10A level and
still maintain the output within ±50mV.
Ch1: QPOIN
Ch4: QPOOUT
Ch3: Load Current – 10A peak, pulse width = 400S
Load Current Static = 1A
Load Current Transient = 9A
Headroom Voltage @ 100mA = 400mV
Attenuation VS Frequency
-70
-60
-50
-40
-30
-20
-10
0
1.00E+02
1.00E+03
1.00E+04
1.00E+05
1.00E+06
Frequency (Hz)
Attenuation
(dB)
28V 10A
3.3V 10A
Figure 3— Attenuation vs. Frequency
Figure 4 – Transient Response using a Vicor
3.3V Half Brick Converter
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QPO-2EVAL1 | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:Evaluation Board for QPO-2 Active Output Filter |
| QPO-2-EVAL1 | 功能描述:EVALUATION BOARD FOR QPO-2 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:Picor®, QUIETPOWER® 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| QPO-2L | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:OUTPUT RIPPLE ATTENUATOR |
| QPO-2LZ | 功能描述:0.3-5.5V 20A OUT RIP ATTENUATOR RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:Picor®, QUIETPOWER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| QPO-2LZ-01 | 功能描述:IC INTERFACE FILTER RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:Picor®, QUIETPOWER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
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