Im trying to power a hobby servo motor (HSR-5995TG ) from the wall using a standard 7.5V 1amp adapter... What do I need to power the motors sufficiently without frying the motors or myself?
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This Servo Motor runs at 4.8-7.4 Volts DC, and uses between 0.35 and 4.5 Amps (!) of current depends on load (0.35 = no load, 4.5 Amp = stall). So you COULD run it with a standard off-the-shelf 6VDC 3 A brick power supply. - BUT - As far as I know, this servo motor is meant for pulse width modulation type of remote control receivers, and as such, you wouldn't just put plain DC on it, but run it with the intended 1.5 milliseconds pulses. But you probably know that... C. Anderson: Thanks for clarifying this.
Your 1A supply isn't really sufficient for what this device can do. These little torque monsters will suck down 5.2A at lock/stall at your 7.5V supply voltage!!! This model doesn't approve of continuous duty use, either. It needs some cool down time between events. The HS-5995TG (no R) had an aluminum heat sink, and could probably tolerate more on time. Edit: Marianna -- wherever I've seen this particular motor, it has had its own onboard square wave generator system, and can be manually controlled with a potentiometer in lieu of using the Hitec programmer. You don't get to set points, etc., but at least you can get some use from it.
