1kW Full-Bridge DC-DC Converter

This reference design provides design guidelines, data, and more for a 1kW server power supply using a phase-shifted full-bridge DC-DC converter.

Schematic PCB

500W server power supply using TOLL package DTMOS

This reference design provides design guidelines, data, and other content for a 500W server power supply using continuous current mode PFC and LLC DC-DC converter. Using TOLL packaged MOSFETs in the PFC circuit reduces the overall size and increases power density.

Schematic PCB

555 timer: 4MHz (80 meter band) CW transmitter

Might not be an actual working transmitter, but it does produce a few mW of RF power at 4 MHz using only two LMC555s.
Principle of Operation (see attached simplified schematic):
At lower operating voltages, the flip-flop (TR) input of the LMC555 can be used as an inverting comparator input to control the output of the device. This requires the Threshold (TH) input to be active (high). This circuit applies a DC bias at the switching threshold of TR and superimposes a small AC feedback signal to create an oscillator. An inverted version of the same signal is applied to the second LMC555 to produce two complementary open collector outputs (the device's discharge output). The output is then connected as a standard push-pull RF amplifier. The TH input is used as the enable input to key the transmitter.

Schematic PCB

FPGA-based Ethernet controller (MAC) source code

Schematic PCB

51 microcontroller TCP-IP+ protocol stack ZLIP source code

Realizing network communication using limited resources on 51 microcontroller platform

Schematic PCB

EtherCAT communication development platform based on ARM processor-schematic diagram

Schematic PCB

ZTE 2400-48V50A communication power supply schematic diagram

ZTE 2400 48v50a circuit schematic diagram, available for maintenance

Schematic PCB

BGU7031 Evaluation Board for Set Top Box Low Noise Amplifier

Schematic PCB

BGA3012 Demonstration Board, 5 MHz to 300 MHz 12 dB Gain Inverting Amplifier Application

Schematic PCB

BGA3012 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

Schematic PCB

Low Noise Amplifier Evaluation Board with BGU7003 for 2.4 GHz ISM/WLAN

Schematic PCB

Low noise amplifier evaluation board using the BGU7003 matched to the 868 MHz ISM band

Schematic PCB

GNSS/GPS low-noise amplifier front-end evaluation board using BGU8007

Schematic PCB

BGU8010 GNSS LNA Evaluation Board

Schematic PCB

BGU7045 evaluation board for set-top box low noise amplifier with bypass function

Schematic PCB

BGU7044 Evaluation Board for Set Top Box Low Noise Amplifier

Schematic PCB

BGU7042 Evaluation Board for Set-Top Box Low Noise Amplifiers with Bypass

Schematic PCB

BGU7033 evaluation board for set-top box low noise amplifier with programmable gain and bypass functionality

Schematic PCB

BGU7032 evaluation board for set-top box low noise amplifier with bypass function

Schematic PCB

BGU6102 Demonstration Board, 50 Ω FM Low Noise Amplifier, Embedded Antenna for Portable Applications

Schematic PCB