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Diagnose LEDs by monitoring the switch-mode duty cycle

External Source

Single pin controls relay, intermittent buzzer, and status LED

One pin controls relay, buzzer, and status LED for control applications. External Source

Buck converter uses low-side PWM IC

A voltage-level shifter lets you control voltages above a PWM controller's power source. External Source

Class AB inverting amp uses two floating-amplifier cells

Coupling optoisolators with one or more powerful discrete transistors yields almost-perfect floating-amplifier cells. External Source

Instrumentation amplifier compensates system offset from single supply

An instrumentation amp operates from one supply and lets you reset the system offset by applying a positive correction voltage to the VREF input. External Source

Microcontroller converts digital-temperature-sensor readings without floating-point arithmetic

Convert digital-temperature-sensor readings without floating-point arithmetic. External Source

Discrete-component buck converter drives HB LEDs

With just a few components, you can provide sufficient power to operate a high-brightness LED from a battery. External Source

Drive a single-coil latching relay without an H-bridge circuit

Drive current in both directions to cut power consumption. External Source

Limit switches control dc-motor H bridge

Mechanical and electronic switches provide interlocks, preventing motors from overrunning their bounds. External Source

Digital controller compensates analog controller

Combine the simple and robust closed-loop control of the digital CLZD010 with the current-limited high-side gate drive of the analog LM3485 for the best of the digital and analog worlds. External Source

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