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 Subject :Re:Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regula.. 2020-02-17 05:27:52 
cullengao
Joined: 2020-02-17 04:18:12
Posts: 5
Location
Forum : XMEGA Xprotolab
Topic : Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator

Subject :Re:Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator

mbgcn@126.com , QQ:402572194
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 Subject :Re:3A Synchronous Buck Li-ion Charger.. 2020-02-17 05:26:06 
cullengao
Joined: 2020-02-17 04:18:12
Posts: 5
Location
Forum : XMEGA Xprotolab
Topic : 3A Synchronous Buck Li-ion Charger

mbgcn@126.com QQ:402572194
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 Subject :Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator.. 2020-02-17 05:24:49 
cullengao
Joined: 2020-02-17 04:18:12
Posts: 5
Location
Forum : XMEGA Xprotolab
Topic : Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator

ZCC2785是一个高−性能线性调节器,提供一个非常广泛的工作输入电压范围高达450伏直流,输出电流高达10毫安。

Ideal for high input voltage applications such as industrial and home metering, home appliances. The ZCC2785 family offers ±5% initial accuracy, extremely high−power supply rejection ratio and ultra−low quiescent current. The ZCC2785 is optimized for high−voltage line and load transients, making this part ideal for harsh environment applications.

The ZCC2785 is offered in fixed output voltage options 2.7V,3.3 V, and5.0 V.

ESOP8 package offers good thermal performance and help to minimize the solution size.

Features

● Wide Input Voltage Range:

DC: Up to 450 V

AC: 85 V to 260 V (half−wave rectifier and 2.2 µF capacitor)

●10 mA Guaranteed Output Current

●Ultra Low Quiescent Current: Typ. 10 µA (VOUT ≤ 5 V)

●±5% Accuracy Over Full Load, Line and Temperature Variations

●Ultra−high PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz

●Stable with Ceramic Output Capacitor 22 µF MLCC

●Thermal Shutdown and Current Limit Protection

●Available in Thermally Enhanced ESOP8 Package

 

 

ZCC2785 PIN TO PIN NCP785●This is a Pb−Free Device

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 Subject :Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator.. 2020-02-17 05:10:37 
cullengao
Joined: 2020-02-17 04:18:12
Posts: 5
Location
Forum : XMEGA Xprotolab
Topic : Wide Input Voltage Range 10_mA Ultra-Low Iq High PSRR Linear Regulator

he ZCC2785 is a high−performance linear regulator, offering a very wide operating input voltage range of up to 450 V DC, with an output current of up to 10 mA.

Ideal for high input voltage applications such as industrial and home metering, home appliances. The ZCC2785 family offers ±5% initial accuracy, extremely high−power supply rejection ratio and ultra−low quiescent current. The ZCC2785 is optimized for high−voltage line and load transients, making this part ideal for harsh environment applications.

The ZCC2785 is offered in fixed output voltage options 2.7V,3.3 V, and5.0 V.

ESOP8 package offers good thermal performance and help to minimize the solution size.

Features

● Wide Input Voltage Range:

DC: Up to 450 V

AC: 85 V to 260 V (half−wave rectifier and 2.2 µF capacitor)

●10 mA Guaranteed Output Current

●Ultra Low Quiescent Current: Typ. 10 µA (VOUT ≤ 5 V)

●±5% Accuracy Over Full Load, Line and Temperature Variations

●Ultra−high PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz

●Stable with Ceramic Output Capacitor 22 µF MLCC

●Thermal Shutdown and Current Limit Protection

●Available in Thermally Enhanced ESOP8 Package

ZCC2785 PIN TO PIN NCP785●This is a Pb−Free Device

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 Subject :3A Synchronous Buck Li-ion Charger.. 2020-02-17 05:04:21 
cullengao
Joined: 2020-02-17 04:18:12
Posts: 5
Location
Forum : XMEGA Xprotolab
Topic : 3A Synchronous Buck Li-ion Charger

一般描述

The ZCC6688 is a 3A Li-Ion battery charger. It utilizes a 500KHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET allow a physically small charger that can be embedded in a wide range of handheld applications. The ZCC6688 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V /8.4V /12.6V /16.8V float voltage. Battery charge current, charge timeout and end-ofcharge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The ZCC6688 is available in a low profile ESSOP10 package.

Features

Input voltage range4V~22V Dynamic input current allocation formaximum charging rate 3.0A Maximum ChargeCurrent No External MOSFETs and BlockingDiode Required Efficiency up to90% Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk ofOverheating Optional Battery Temperature MonitoringBefore and During Charge Automatic Sleep Modefor Low-Power Over CurrentProtection Consumption Available inESSOP10 RoHS Compliant and 100% Lead(Pb)-Free

 

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 Subject :What is the sample rate of PC interface?.. 2020-02-08 01:05:52 
saleh
Joined: 2015-09-20 00:01:49
Posts: 6
Location
Forum : XScopes PC Interface
Topic : What is the sample rate of PC interface?

Hi

I look at the board document and i can't realize what is the sample rate of device on PC interface record continuously?

 

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 Subject :Re:Update firmware.. 2019-11-09 00:14:04 
rbn
Joined: 2013-09-01 03:12:42
Posts: 1
Location
Forum : XMEGA Xminilab
Topic : Update firmware

The latest version on the website binary is 2.40, but the latest source is at least 2.45... https://github.com/ganzziani/XScopes-Firmware/commit/414b9e098b4e5b92ed7c93ae96a51f5a075b238f
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 Subject :Is this site dead?.. 2019-10-14 18:27:49 
Skidlz
Joined: 2016-10-08 08:55:57
Posts: 1
Location
Forum : XMEGA Xprotolab
Topic : Is this site dead?

I don't see that any products can be purchased. I can't find a way to contact anyone.

I'd like to buy another Xprotolab kit! I'd build one from scratch, but the schematics don't include the board layout and the ATXMEGA32A4U is getting impossible to find.

Anyone?

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 Subject :Re:Update firmware.. 2019-07-09 22:23:46 
ganzziani
Joined: 2012-04-02 15:42:39
Posts: 463
Location: Sarasota, FL
 
Forum : XMEGA Xminilab
Topic : Update firmware

The latest firmware is on the product's page. Look for the "HEX" icon.
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Gabriel Anzziani
 Subject :Update firmware.. 2019-06-22 20:42:08 
jjavivi
Joined: 2012-12-09 13:34:21
Posts: 4
Location: Spain
Forum : XMEGA Xminilab
Topic : Update firmware

Hello,

What is the latest version of Xminilab? I'm trying to access the download area, but the email never arrives with the ID.


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 Subject :Re:bug in SPI protocol sniffer?.. 2019-05-20 20:33:48 
ganzziani
Joined: 2012-04-02 15:42:39
Posts: 463
Location: Sarasota, FL
 
Forum : XScopes PC Interface
Topic : bug in SPI protocol sniffer?

The correct pins are 4 through 7. The SPI sniffer needs all 4 signals to work. Are you using the SPI select (/SS)?
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Gabriel Anzziani
 Subject :bug in SPI protocol sniffer?.. 2019-05-19 20:35:22 
lshachar
Joined: 2015-10-09 11:51:52
Posts: 3
Location
Forum : XScopes PC Interface
Topic : bug in SPI protocol sniffer?

Hi!
it seems to me that the bit numbers on the protocol sniffer page in xscope, are supposed to benumbers 4 to 7.

wrong bits?

from the manual:

from the manual

I can't tell if the SPI sniffer is actually working properly, or what logic channels are actually used.

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 Subject :control the scope with python, here are some code examples.. 2018-12-18 12:02:01 
nicole wolffer
Joined: 2018-12-18 11:51:37
Posts: 1
Location
Forum : XScopes PC Interface
Topic : control the scope with python, here are some code examples

The pyusb module allows to control xpotolab with python.

I tried with a xprotolab plain, a computer on Ubuntu and a Raspberry pi

I tried the scope mode only.

First, one need to install pyusb

https://github.com/walac/pyusb

https://github.com/walac/pyusb/blob/master/docs/tutorial.rst

libusb must also be installed, but, if Gabriel's program is running, its already done

One must be sure the scope is triggered. If it is not , a time out error will occur while trying to transfer the frame data

On Ubuntu or Raspberry, open python in super user mode.

its ready, here are the code examples

#first, import the modules

import sys

import usb.core

import usb.util

#find the scope

xscope = usb.core.find(idVendor=5840, idProduct=1785)

if xscope is None:

print'Xscope is not connected'

#find the number of configurations

print 'nomber of configurations : ',xscope.bNumConfigurations

cfg=xscope[0]

#find the number of interfaces and alternate settings

print "nomber of interfaces of config 0 : ",cfg.bNumInterfaces

intf=cfg[0,0]

print "nomber of alternate settings : ",intf.bAlternateSetting

#find the end points

print "nomber of end point : ",intf.bNumEndpoints

ep0=intf[0]

ep1=intf[1]

print "ep0 adress: ",ep0.bEndpointAddress

print "ep1 :adress ",ep1.bEndpointAddress

print "packet max of ep0 : ",ep0.wMaxPacketSize

print "packet max of ep1 : ",ep1.wMaxPacketSize

#set configuration before beeing able to communicate with the scope

xscope.set_configuration()

#for each frame, 12 paquets of 64 bytes and a paquet of 2 bytes (frame and index)

#get paquets using bulk transfer untill the frame and index are send

u=100

while u>2:

data = xscope.read(ep0.bEndpointAddress,ep0.wMaxPacketSize)

u = len(data)

#paquets will now correspond to a new frame

#get ch1 data

ch1=[]

for u in range (4):

#bulk transfer of 64 bytes

data = xscope.read(ep0.bEndpointAddress,ep0.wMaxPacketSize)

#add data to ch1

ch1.extend(data.tolist())

print 'ch1 = ', ch1

#get ch2 data

ch2=[]

for u in range (4):

data = xscope.read(ep0.bEndpointAddress,ep0.wMaxPacketSize)

ch2.extend(data.tolist())

print 'ch2 = ',ch2

#get chD data

chD=[]

for u in range (4):

data = xscope.read(ep0.bEndpointAddress,ep0.wMaxPacketSize)

chD.extend(data.tolist())

print 'chD = ',chD

#get frame, index data

data = xscope.read(ep0.bEndpointAddress,ep0.wMaxPacketSize)

frameindex=data.tolist()

print 'frame and index =', frameindex

#Now, one want to read and change the scope settings.

#

#commands are sent as CONTROL READ requests.

#commands are letters which can be found in the manual

#There are only two details one has to be carefull:

#first, do not use the command letters as string but use the ASCII value of the command letter.

#For example , to ask the firmware version, do not write a but write ord(a) or 0x61.

#Also, ask the exact number of bytes the scope is ready to send, no more, no less.

#To ask for firmware version:

data = xscope.ctrl_transfer(0xC0,0x61,0,0,4)

print data

v=data.tolist()

version = chr(v[0])+chr(v[1])+chr(v[2])+chr(v[3])

print version

#my version is 2,38

#to read registers: command is 'u', 44 bytes are send to computer

data = xscope.ctrl_transfer(0xC0,ord('u'),0,0,44)

print data

#mind, in older devices, there may be only 43 bytes

#to restore defaults , command is k

xscope.ctrl_transfer(0xC0,ord('k'),0,0,0)

#to write the settings, command is 'b' and 0 byte is send to computer,

#for example

#to set channel A gain (index 12 ) to level 3:

xscope.ctrl_transfer(0xC0,ord('b'),3,12,0)

#to set channel B gain (index 13 ) to level 5:

xscope.ctrl_transfer(0xC0,ord('b'),5,13,0)

#to set timescale (index 0 ) to level 5:

xscope.ctrl_transfer(0xC0,ord('b'),5,0,0)

p { margin-bottom: 0.25cm; line-height: 120%; }a:link { }

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 Subject :Trigger sign is missing from graph interface from a certain horizontal.. 2018-12-07 15:30:04 
lshachar
Joined: 2015-10-09 11:51:52
Posts: 3
Location
Forum : XScopes PC Interface
Topic : Trigger sign is missing from graph interface from a certain horizontal range

Subject :Trigger sign is missing from graph interface from a certain horizontal range

Hello!

I cannot use triggers properly, since the trigger sign is missing once going from 10ms/div time to 20ms/div time and up. also, once that happens, I cannot scroll the captured signal to the sides.

link: attached video

XScope Version 1.1.0.0
Xprotolab Plain Firmware Version 2.38

cheers, Shachar.

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 Subject :Re:UART baud rate... 2018-08-29 10:50:01 
eead369
Joined: 2018-07-08 23:44:31
Posts: 2
Location
Forum : XMEGA Xminilab
Topic : UART baud rate.

I don't have that skillset.

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 Subject :Re:Xminilab - USB PC-connection.. 2018-08-03 23:37:54 
ganzziani
Joined: 2012-04-02 15:42:39
Posts: 463
Location: Sarasota, FL
 
Forum : XMEGA Xminilab
Topic : Xminilab - USB PC-connection

Have you tried another cable? Do you see a the red LED blink quickly when connecting the Xminilab?
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Gabriel Anzziani
 Subject :Xminilab - USB PC-connection.. 2018-07-31 06:36:37 
Alwinharms
Joined: 2018-07-31 06:29:48
Posts: 1
Location
Forum : XMEGA Xminilab
Topic : Xminilab - USB PC-connection

a few weeks ago i discovered that the Xminilab won't connect to the Gabotronics Xscope interface PC-software anymore. I am using Windows 7. Is there any workaround that may help solving the problem?

Thanks and regards,

Alwin

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 Subject :not connected problem.. 2018-07-14 11:11:00 
sarea
Joined: 2018-07-14 11:03:20
Posts: 1
Location
Forum : XMEGA Xprotolab
Topic : not connected problem

Hello all,

while i am using the Xscope spi protocol sniffer, suddenly the pc gui stops working.

i have tried to restart the PC and reconnect the scope usb but nothing happened.

the gui opens as usual if the scope not connected but if i try to open it with the scope connected then i have on the window "not connected" and it is closed immediately.

How to fix that ?

Regards,

Sarea

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 Subject :Re:UART baud rate... 2018-07-09 20:55:51 
ganzziani
Joined: 2012-04-02 15:42:39
Posts: 463
Location: Sarasota, FL
 
Forum : XMEGA Xminilab
Topic : UART baud rate.

You could create your own firmware.

It would be a matter of changing some constants in the source code.

IP Logged
Gabriel Anzziani
 Subject :How do I buy another one.. 2018-07-09 19:02:21 
haywardt
Joined: 2013-05-17 01:03:03
Posts: 2
Location
Forum : XMEGA Xprotolab
Topic : How do I buy another one

I can't find a way to put the xprotolab in my shopping cart. I love these little devices and I'm all out of them. How do I buy one?

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