PWM Motor/Light Controller
These two schematics are variations on another PWM circuit that I designed. The diagrams are for 12V operation only and there are high side (common ground) and ...
PWM Motor Speed Controller
A pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is for a genera...
PWM Motor Speed Controller
A pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is for a genera...
PWM DC Motor Speed Control
This is a circuit for controlling the speed of small DC motors, it works nicely as a speed controller for an HO or N gauge model railroad....
PWM DC Motor Speed Control
This is a circuit for controlling the speed of small DC motors, it works nicely as a speed controller for an HO or N gauge model railroad....
DC Motor-Driver H-Bridge Circuit
Physical motion of some form helps differentiate a robot from a computer. It would be nice if a motor could be attached directly to a chip that controlled the m...
DC Motor-Driver H-Bridge Circuit
Physical motion of some form helps differentiate a robot from a computer. It would be nice if a motor could be attached directly to a chip that controlled the m...
H Bridge Direct Current Motor Control Circuits
This page features H-Bridge circuits used for controlling direct current motors. Several designs are shown using both CMOS and Bi-Polar power devices. These cir...
H Bridge Direct Current Motor Control Circuits
This page features H-Bridge circuits used for controlling direct current motors. Several designs are shown using both CMOS and Bi-Polar power devices. These cir...
H bridge switch for small motors
Two inputs, A and B, control the bridge. With both high (or open circuit) both ends of the motor are connected to 0v. Connect A low and Tr2 turns on causing the...
H bridge switch for small motors
Two inputs, A and B, control the bridge. With both high (or open circuit) both ends of the motor are connected to 0v. Connect A low and Tr2 turns on causing the...
74*245-based motor driver
A simple, time-honored approach is to use one or more 74*245 chips (normally the 74AC245 is used for maximum current capability) to provide motor drive curren...
74*245-based motor driver
A simple, time-honored approach is to use one or more 74*245 chips (normally the 74AC245 is used for maximum current capability) to provide motor drive curren...
Stall-Motor Routing Control Circuits
This page shows some methods of track routing control for Stall-Motor type switch machines. The principle method uses a 2 Pole - Multi Position rotary switch wh...
Stall-Motor Routing Control Circuits
This page shows some methods of track routing control for Stall-Motor type switch machines. The principle method uses a 2 Pole - Multi Position rotary switch wh...
Serial Servo Motor Controller
The first servo controller project at http://www.rentron.com/servo.htm had the com port fixed at com1. This new version will seek out the available com ports o...
Serial Servo Motor Controller
The first servo controller project at http://www.rentron.com/servo.htm had the com port fixed at com1. This new version will seek out the available com ports o...
Speed Controller for brushed electric motors
Like most other ESCs, this one is built up using N-channel Power MOSFET`s because of their good characteristics (low DS resistance). Since this ESC has no rever...
Speed Controller for brushed electric motors
Like most other ESCs, this one is built up using N-channel Power MOSFET`s because of their good characteristics (low DS resistance). Since this ESC has no rever...
Stepping Motor Driver
The circuit is not particularly susceptible to motor transients and supports FULL STEPS FORWARD, FULL STEPS REVERSE, ACTIVE HOLD, and POWER OFF aka RELEASED. If...