pcb-lorens-5

[DavidB]

Is the schematic on here for download without going through spam city

[usefi5961]

sorry ,mee60lease share the dd coil detail for this metal detector (different diameters size of coil)and i want know the schematic is reverse engineering or design is from you?

[usefi5961]

THANK YOU eclips!

[eclipse]

I will save everyone's time with this file.
It's already been uploaded in the topic before, it's incomplete (no values on the components), and it's got errors.
It's better not to upload useless files and let people waste their time, or at least describe what the file contains.

[perzo]

thank's perzo,but when downloading .layout eset warning and threat find error appear in monitor.

hi;
usefi5961 open with Sprint-Layout 5.0

[mee60]

Hi all
tanks of all people for affected speech
Everyone of people make it please sharing data for all
my new project is make Lorenz lp5 whit atxmega128
if project to be finished cartainly share it.
Best regards

[eclipse]

Awesome info, thanks mee60.
Your schematic is very accurate, parts and connections of the bottom board are 100% verified (just R68 is 33K, not 39K which is not critical ofcourse C11,C12-470pF ).

[mee60]

Ok
When use mono coil this pin not connected to wherever. If used dd coil this pin (6) should be connected ground
best regards

[Xtrem]

Sasho connections appear to be consistent with mine which I have from drawing schematic from the original board photo.
For component values I can't speak. I did mark R73 with * when I draw this few months ago - I don't remember exactly why - probably wasn't sure for the value.

Thank you mee60 for this hard job , you have my full respect.
The circuit setup above , has the ability to hold the offset at zero voltage, it must be correct.
In my notes , a 34cm diameter Lorenz mono coil , for Pulse5 , has 300μH 1.5Ω.
also PPS are 1240 and PW are 100μS.

[wtrk]

Hey @mee60.

Please send me pcb drawing. Because I will order to PCB

[eclipse]

Im asking for Mono coil. The original drawing is not in English and it's not very clear how to connect it for Mono coil.

[mee60]

Hi
when used DD coil this pin (6) connects to grund.
Please see original connectors

[eclipse]

Where the marked in red is connected with mono coil?

[mee60]

hi all
i drawing lorenz lp 5 schematic of original circuit pic .Maybe it's a mistake.
but i make it and worked fine
not : ADG444 not worked in circuit it typing wrong . it is ADG 442 im used it .
not : power supply in circuit is -8v and +6.5v . im chennged original circuit with lm317( original ic is lm2950 dip )
not : i dont know original coil parameters but i used mono coil (( 35 cm coil 1.8~2 ohm 390~400uH)) and (( 50cm coil 2.1 ohm 400uH)) . 35 cm coil is better in my test.

[scs]

This is a classical circuit of a DC amplifier controlled by an integrator.