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Electronics => Electronics => Topic started by: oltion28 on June 08, 2012, 11:47:42 AM

Title: Hs-311 servo control circuit
Post by: oltion28 on June 08, 2012, 11:47:42 AM

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

Title: Re: Hs-311 servo control circuit
Post by: Pogertt on June 08, 2012, 07:08:07 PM

Take a read of this page.

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

It will explain what signal the servo requires.

Title: Re: Hs-311 servo control circuit
Post by: billhowl on June 08, 2012, 10:07:04 PM

or this about the block diagram of a typical servo motor unit.
http://www.digitalnemesis.com/info/docs/rcservo/ (http://www.digitalnemesis.com/info/docs/rcservo/)
(http://www.digitalnemesis.com/info/docs/rcservo/resources/servodiagram1.png)

Title: Re: Hs-311 servo control circuit
Post by: oltion28 on June 09, 2012, 01:13:53 AM

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

Title: Re: Hs-311 servo control circuit
Post by: Webbot on June 10, 2012, 09:48:49 AM

Quote from: oltion28 on June 08, 2012, 11:47:42 AM

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?

Title: Re: Hs-311 servo control circuit
Post by: oltion28 on June 11, 2012, 12:30:02 AM

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

Title: Re: Hs-311 servo control circuit
Post by: billhowl on June 11, 2012, 05:44:40 AM

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/files/electronic/m51660l.pdf)
(http://www.willingtons.com/images/mymac/servo_schem.jpg)

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

Title: Re: Hs-311 servo control circuit
Post by: oltion28 on June 12, 2012, 02:07:04 AM

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

Title: Re: Hs-311 servo control circuit
Post by: billhowl on June 12, 2012, 07:28:30 AM

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 (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://img523.imageshack.us/img523/1362/hitec8vz.jpg) (http://img523.imageshack.us/img523/1362/hitec8vz.jpg)
http://www.basicmicro.com/downloads/docs/Hitec%20Digital%20Servo.pdf (http://www.basicmicro.com/downloads/docs/Hitec%20Digital%20Servo.pdf)