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Driver Circuits
Drivers: #'s - A B - E F - L M - R S - Z
Last Updated on: Wednesday, November 29, 2017 05:38 AM

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Driving White LEDs - The 555 is capable of sinking and sourcing up to 200mA, but it gets very hot when doing this on a 12v supply. The following circuit shows the maximum number of white LEDs that can be realistically driven from a 555 and we have limited the total current to about 130mA as each LED is designed to pass about 17mA to 22mA maximum. A white LED drops a characteristic 3.2v to 3.6v and this means only 3 LEDs can be placed in series. . . . [Name of designer is not given]

Dual 13A μModule regulator with digital interface for remote monitoring & control of power - 04/06/15 EDN Design Idea Digital power system management (PSM) enables on-demand telemetry capability to set, monitor, change, and log power parameters of dual high-current . . . [EDN Design Idea]

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Dual Monostable Drives Quasiresonant Inverter - 02/17/97 EDN Design Idea A zero-voltage-switching (ZVS]controller usually integrates a one-shot circuit, embodied in a VCO system. An error Amplifier monitors the output voltage and adjusts the VCO's off-time to keep the output value at a constant level. . . [by Designer Christophe Basso, Sinard, France]

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Dual Relay Driver Board - . . . [by IQ Technologies Industry, unless otherwise noted online]

Dual Relay Driver Board - We have used two Goodsky RWH-SH-112D 12V relays, coil resistance 400 ohm. It is rated to switch 250VAC at 12A. However, because of the PCB track thickness and width we do not recommend using the
relay to switch more than 5A. If you. . . .

Dual Stepper motor drivers using UDN2543 - The UDN2540B is a quad darlington power driver, manufactured by Allegro. Each output can sink up to 1. 8A continuous. The typical applications include print heads, relays, solenoids, and stepper motor control. It is a replacement for L6221A. In this Dual stepper motor drivers design we use two UDN2540B to drive two stepping motors at the same speed. Each motor can be independently controlled. The S1, S2 switches control the ON/OFF and the moving direction of Motor1. The S3, S4 control the Motor2, respectively. . .

Dual-Coil Relay Driver Uses Only Two Mosfets - 10/22/09 EDN Design Idea Differentially drive relays to minimize power consumption. . . [by Mehmet Efe Ozbek, PhD, Atilim University Ankara, Turkey]

Dual-Display with LED Driver with 3/2x Switched Capacitor Boost - Application Note LM2796 February 2004. . . [National Semiconductor]

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Drivers: #'s - A B - E F - L M - R S - Z