Search found 25 matches
- Wed Jun 28, 2017 1:47 am
- Forum: DSO Shell
- Topic: Replacement R26 - R27 by regulator
- Replies: 8
- Views: 11307
Re: Replacement R26 - R27 by regulator
Hello, With this change you get a steady and steady voltage even if the 9V power source varies, while R26 and R27 give any voltage depending on the load and source voltage. ICL7660 produces noise on the negative line. The addition of the two regulators can only bring good and remove noise on the mea...
- Wed Jun 21, 2017 6:26 pm
- Forum: DSO Shell
- Topic: Assembly Tutorials and Examples (provided by users)
- Replies: 4
- Views: 29673
Re: Assembly Tutorials and Examples (provided by users)
Hello,
The electronic card 109-15001-00C is also compatible with the latest firmware 061.
Regards.
Diabolo
The electronic card 109-15001-00C is also compatible with the latest firmware 061.
Regards.
Diabolo
- Tue Jun 20, 2017 10:32 pm
- Forum: DSO Shell
- Topic: Replacement R26 - R27 by regulator
- Replies: 8
- Views: 11307
Re: Replacement R26 - R27 by regulator
Hello, This provides a precise and stable 5 volt positive and negative voltage independent of variations in the source voltage. With a power supply from a 3.7V li-ion source with booster to get 9V, the voltages are rid of any pollution. The analogue channel is sensitive to power supply noise. Peaks ...
- Mon Jun 19, 2017 6:50 pm
- Forum: DSO Shell
- Topic: Integrated battery case
- Replies: 3
- Views: 7523
Integrated battery case
Hello, I also made a power supply with a Li-ion battery of 3200 mAh for GSM Galaxy J5. I will post the pictures of the modifications and the feed in this topic. --- The battery compartment is 9mm thick and is manufactured with double-sided epoxy printed circuit 15/10 welded with tin solder. It is he...
- Mon Jun 19, 2017 6:13 pm
- Forum: DSO Shell
- Topic: Replacement R26 - R27 by regulator
- Replies: 8
- Views: 11307
Replacement R26 - R27 by regulator
Hello,
To improve the supply voltage in the analog board of the DSO150 I replaced R26 by a regulator 78L05 TO92 and C11 by 100nf, and R27 by a regulator 79L05 TO92 and C14 by 100nf.
The GND pins of the regulators will be welded on C14 screen after having scratched the protective varnish.
Regards.
To improve the supply voltage in the analog board of the DSO150 I replaced R26 by a regulator 78L05 TO92 and C11 by 100nf, and R27 by a regulator 79L05 TO92 and C14 by 100nf.
The GND pins of the regulators will be welded on C14 screen after having scratched the protective varnish.
Regards.