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Technical notes, design insights, and development stories from our engineering workflow.
A closer look at hardware design, embedded systems, power electronics, testing, and the decisions behind real development work.
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DESAT Protection for IGBT and MOSFET Switching
Instagram: @lentark IGBTs (Insulated Gate Bipolar Transistors) and MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are switching elements used in power electronics applications, and there are many protection methods to ensure these components are not damaged. DESAT (desaturation) protection is just one of these methods and it detects overcurrent/short-circuit conditions of the switching element, allowing the driver to turn off the switching element before any dam

Lentark Electronics
Aug 12, 20236 min read


Push-Pull PWM Driver for Dual-Channel Signal Control
PDI-A14-5V1A: Push-Pull PWM Driver The PDI-A14-5V1A is a push-pull PWM driver designed for programmable two-channel PWM signal generation. It provides two signal outputs operating at the same frequency, with an adjustable frequency range from 100 Hz to 1 MHz and a duty cycle range from 0% to 50.0%. With 0.1 Hz frequency resolution and 0.1% duty cycle resolution, the device is suitable for applications where timing accuracy and precise PWM adjustment are important. The device

Lentark Electronics
May 2, 20232 min read


D2R: ZCD-28PT835A Triac Controller
ZCD-28PT835A: Triac Controller Design ZCD-28PT835A is a triac and reverse-parallel SCR driver module designed for AC power control applications. It supports an 85–285 VAC RMS input range and allows the firing behavior to be controlled through the duty cycle ratio of the PWM signal supplied to the device. This Design to Reality view presents the transition from the design stage to the manufactured hardware, showing how the isolated AC control structure, PCB layout and driver i

Lentark Electronics
Apr 6, 20232 min read


PWM Controlled Dimmer for Triac and SCR Driver Applications
ZCD-28PT835A: PWM Controlled Dimmer and Triac/SCR Driver ZCD-28PT835A is a triac and reverse-parallel SCR driver module designed for AC power control applications. It supports an 85–285 VAC RMS input range and allows firing control through the duty cycle ratio of the PWM signal applied to the device. This structure makes the module suitable for digitally controlled dimmer and AC switching applications. Instead of using a purely analog control method, the firing behavior can b

Lentark Electronics
Apr 5, 20232 min read


D2R: ZCD-285VAC-18V6A Zero-Cross Detector
ZCD-285VAC-18V6A: Zero-Cross Detector Design ZCD-285VAC-18V6A is a voltage zero-cross detector module designed to detect the points where an applied AC input signal crosses the zero-potential region. It supports an 85–285 VAC RMS input range and provides a ZCD output signal referenced to the selected output supply voltage. This Design to Reality view presents the transition from the design stage to the manufactured hardware, showing how the zero-cross detection circuit, isola

Lentark Electronics
Mar 23, 20232 min read
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