Delta Pulse

[liudengyuan]

I want to use the microcontroller instead of LM556 and 4538, please provide good suggestions, I would like to share

[kt315]

mrmetal, 12v is standart power supply voltage for majority PI detectors' schematics. slight bias -/+ 0,5V is justifiably. you can use 12,6V.
with impulse STEP-UP converter you will get hard +12V in the project. I buy them in ebay for low price.
Liu Den, yes certainly you can take a data from the diagram. good suggestions are perhaps to learn another schematics with PIC and ATMEL micro
and take ready soliutions from them. for example you can take solution from Carl Moreland's Hammerhead-PI detector on PIC based.
consider that DVD-ROM has 3GB archive with all schematics and schemotechniKs. in other folders concentrated all information.

good luck

analog schemotechniKs is not dead and still alive =)

[liudengyuan]

KT315 Hello, Hammerhead PI and delta pulse which is better

[kt315]

KT315 Hello, Hammerhead PI and delta pulse which is better

they are different detectors for different aims. you have to have both in your establishment. after HH you will get all trial and any PI will be for you
VERY EASY to grasp. DP is also simple for to do. mohhandes made it easily, while he is not yet able to finish White's IDX and 'bulgarian' Pulse Star.

[Jose]

I want to use the microcontroller instead of LM556 and 4538, please provide good suggestions, I would like to share

If I could be scheduled for the DP, would do the following:
Pulse TX adjustable, varying between 100 and 400 us. 100 to 500 Hz frequency varying
First sample from 15 to 100 us, taken after the end of TX pulse with a pulse width of 50 us.
Second sample taken after the end of the first above shows, varying from 100 to 500 us. with a pulse width of 50 us.
Jose

[mohandes]

they are different detectors for different aims. you have to have both in your establishment. after HH you will get all trial and any PI will be for you
VERY EASY to grasp. DP is also simple for to do. mohhandes made it easily, while he is not yet able to finish White's IDX and 'bulgarian' Pulse Star.

thanks KT , i am good example for beginner .

[liudengyuan]

Thank you for your participation, I will focus on the DP program development, I have a question do not understand, the connector between T2 to 4538 what role in the development process is that this is not to cut some features do not, please provide a good proposal

[kt315]

thanks KT , i am good example for beginner .

those military application IC's in your DP say me you have a source in military equipment. do you job in military? electronics espionage?

[mohandes]

those military application IC's in your DP say me you have a source in military equipment. do you job in military? electronics espionage?

i will take photo and put here of these parts.
regards

[liudengyuan]

Please explain the function and role of this part of the circuit, if you can do it

[kt315]

Thank you for your participation, I will focus on the DP program development, I have a question do not understand, the connector between T2 to 4538 what role in the development process is that this is not to cut some features do not, please provide a good proposal

T2 is preset signal to nulling all LOAD-KEEP CIRCUITS. ie DA4-B, DA3-A and SAT. no need in balancing of preamp like you see in Surf PI, Hammerhead. all balancing
AUTOMATICALLY and dinamically makes on work circle period timing start.

[Jose]

Thank you for your participation, I will focus on the DP program development, I have a question do not understand, the connector between T2 to 4538 what role in the development process is that this is not to cut some features do not, please provide a good proposal

T2 connected to 4538.
When the coil is on a large metal, T2 together with 4538, the delay time changes, by increasing it, in order to avoid overloading.
I have disconnected the manifold T2 in my DP, (open collector) that allows a smoother delay control.
In my personal opinion, I would not mind that this T2 detached from 4538, I find no difference in my DP, on the contrary there is more adjustment range for the delay.
Jose

[kt315]

Please explain the function and role of this part of the circuit, if you can do it

this part protects TX part from overloading. it moves PRIMARY and SECONDARY STROBE DELAY, the strobes itself, in range of more less level on 'delta' pulse timing at right side. this part turns up and reacts on big amplitude TX signal only, big target near touched a coil. OVERLOADING TX PROTECTION.

[liudengyuan]

I'm ready to get rid of times in the preparation of the program part of the function, do you think you can do?

[Jose]

I'm ready to get rid of times in the preparation of the program part of the function, do you think you can do?

If you ask if I can do it, is not.
I know nothing about programming.