DC/DC converters Coverage on EDN

1 - 10 of about 1451 results

Understanding noise, ENOB, and effective resolution in ADCs

... bits, however, delta-sigma ADCs are becoming more prevalent. SAR ADCs currently are at an 18-bit limit, whereas delta-sigma ADCs are expanding their presence at 18, 20, and 24 bits. ADCs’ prices have...
http://www.edn.com/article/521860-Understanding_noise_ENOB_and_effective_resolution_in_ADCs.php

EMI problems? Part four: It could be conduction

.... The mode of coupling for these noise sources is through the parasitic capacitance between traces. These signals transmit current spikes into a neighboring PCB trace.Vemi2 again originates with switching...
http://www.edn.com/article/521868-EMI_problems_Part_four_It_could_be_conduction.php

Resistor-programmed switching-regulator IC goes rail to rail down to 0V

... regulator in many places, both as a solo device and as part of higher-current groups.You use one resistor to program the IC, which delivers 0 to 15V at currents as high as 1.5A. It includes an internal 50-μA reference current to establish the output voltage, which you can adjust dynamically. It accepts inputs spanning 4 to 15V, making it a good fit for dual-cell lithium-ion designs or fixed-rail 5 and 12V...
http://www.edn.com/article/521774-Resistor_programmed_switching_regulator_IC_goes_rail_to_rail_down_to_0V.php

High-performance HF transceiver design: A ham's perspective

... adopted an up-converting architecture with a first IF above the signal frequency, allowing for cheaper, smaller filters, and easier all-band coverage. However, as the performance tests evolved to use...
http://www.edn.com/article/521690-High_performance_HF_transceiver_design_A_ham_s_perspective.php

Researchers prototype implantable microphone for deaf

... Center. The study was funded by the National Institutes of Health (NIH-DC-006850). The device has been successfully tested in the ear canals of four cadavers. Tests in people are about three years away...
http://www.edn.com/article/521662-Researchers_prototype_implantable_microphone_for_deaf.php

PCB and ESR subtleties in switching regulator and LDO designs

...H of inductance at modestly high current and high di/dt, for example 1A/2ns, can be troublesome. Vias can introduce a relatively high inductance as well as capacitance and are best used for DC conduction. When high...
http://www.edn.com/article/521618-PCB_and_ESR_subtleties_in_switching_regulator_and_LDO_designs.php

Go inside Fluke's electrical metrology lab

....)Multifunction calibrators produce DC and AC voltage and current as well as resistance that Fluke and its customers use to calibrate a wide range of measurement equipment. The calibration station itself needs reference...
http://www.edn.com/article/521574-Go_inside_Fluke_s_electrical_metrology_lab.php

Teardown: The nuances of variable-frequency drives

... the capacitor from overstressing. When you apply dc power to a capacitor, the capacitor instantly sees this action as a short circuit, causing a large inrush current from the source (Figure 8).A microprocessor...
http://www.edn.com/article/521522-Teardown_The_nuances_of_variable_frequency_drives.php

Linearize optical distance sensors with a voltage-to-frequency converter

... uses the Sharp GP2D120 sensor (Reference 1), which measures distances of 4 to 30 cm (40 to 300 mm). This sensor is currently out of production but may be available through some sources. If not, a similar...
http://www.edn.com/article/521541-Linearize_optical_distance_sensors_with_a_voltage_to_frequency_converter.php

New power semiconductor technologies challenge assembly and system setups

... inverter setups with DC-link voltages up to 450 V and max currents in the region of 600 Amperes. In this case, the blocking voltage of a 600 V device is rapidly reached if the module and system setup...
http://www.edn.com/article/521511-New_power_semiconductor_technologies_challenge_assembly_and_system_setups.php


1 - 10 of about 1451 results

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