Hs-311 servo control circuit

[oltion28]

Hello there
I've searched all over the internet, and I can not find any information about integrated circuit of the hitec hs-311 servo. I know only that the circuit has to do with the H-bridge.
Can somebody help me for this problem?
Thank You

[Pogertt]

Take a read of this page.

http://www.servocity.com/html/how_do_servos_work_.html

It will explain what signal the servo requires.

[billhowl]

or this about the block diagram of a typical servo motor unit.
http://www.digitalnemesis.com/info/docs/rcservo/

[oltion28]

thank you for your replies, but does anybody has a schematic of the integrated circuit inside the servo hs 311? :-/

[Webbot]

I've searched all over the internet, and I can not find any information about integrated circuit of the hitec hs-311 servo.

Why do you want to know?

[oltion28]

I want to know because I have a course work at my university. :-/

[billhowl]

Here is the schematic of the integrated circuit inside the servo GWS not HS-311
which using integrated circuit Mitsubishi M51660L
http://www.willingtons.com/files/electronic/m51660l.pdf


http://www.willingtons.com/mymac/servo_driver.htm

[oltion28]

thank you!
But I have found schematic like this but i only need the schematic for the hs 311.

[billhowl]

The HS311 using proprietary integrated circuit HT7002, I don't think you can get the schematic or any info for it, unless you trace the circuits yourself. another ways was to ask HiTec for the info.
http://www.openservo.com/Servo_HiTec_HS-311?action=AttachFile&do=get&target=hs_311_detail.jpg

Here is an internal servo schematic of the regular HSR-5995TG servo provided by another tinkerer, Richard Ibbotson. He traced the circuits himself.

http://www.basicmicro.com/downloads/docs/Hitec%20Digital%20Servo.pdf