Battery Connector

Battery Connector

Postby Rolf » Fri Sep 27, 2013 10:43 am

Hello JYE-Team,

we use the DSO094 built-in into the front panel of our laboratory function generator.
Since the DSO is charged only via USB ( that's how I understand the documentation) we want to connect our power supply directly to the DSO without the battery.
Unfortunately I cannot find the cable connector type.
Can you help me?

Regards
Rolf
 
Posts: 6
Joined: Wed Sep 04, 2013 7:29 am

Re: Battery Connector

Postby jye1 » Sat Sep 28, 2013 1:36 am

What is the voltage of the power supply to be used? If it is 5V it can be directly connected to the test point VBUS (at the side of the USB connector) and GND.
jye1
 
Posts: 1221
Joined: Wed Feb 20, 2013 4:58 pm

Re: Battery Connector

Postby Rolf » Mon Sep 30, 2013 10:25 am

Hello jye1,

I had extra added an adjustable voltage regulator on our board fed by our 5V-supply and adjusted it to 3,7V. This should replace the battery.
As I understand you, the 5V can be connected to VBUS.
May I also connect the 5V to the battery connector? If yes, I will cut the battery cable, use the connector and feed the 5V directly via the white connector.

Regards
Rolf
 
Posts: 6
Joined: Wed Sep 04, 2013 7:29 am

Re: Battery Connector

Postby jye1 » Fri Oct 04, 2013 11:05 pm

By datasheets directly connecting 5V to the battery connector shouldn't damage anything. You can also add a diode in series between +5V and the connector. This will lower the voltage by about 1V and is safer. Any regular rectifier diode with 1A capacity would be good.
jye1
 
Posts: 1221
Joined: Wed Feb 20, 2013 4:58 pm

Re: Battery Connector

Postby Rolf » Mon Oct 07, 2013 7:58 am

OK
Thank you
Rolf
 
Posts: 6
Joined: Wed Sep 04, 2013 7:29 am

Re: Battery Connector

Postby Rolf » Mon Oct 07, 2013 8:19 am

Hello,

there still remains one problem.
Usually the battery is charged via USB. Now there is no passive battery but our active 5V minus one diode voltage.
I hope the USB-Charging-Unit will not resent this new configuration.
Rolf
 
Posts: 6
Joined: Wed Sep 04, 2013 7:29 am

Re: Battery Connector

Postby jye1 » Tue Oct 08, 2013 12:29 am

The BAT terminal can withstand up to 7V so a 5V connected to it should not damage the chip.
jye1
 
Posts: 1221
Joined: Wed Feb 20, 2013 4:58 pm


Return to DSO 094

Who is online

Users browsing this forum: No registered users and 1 guest