This reference design provides design guidelines, data, and other content for an IH induction cooker inverter circuit based on voltage resonant soft switching.
This reference design provides design guidelines, data, and more for a 100W LLC DC-DC converter using LLC resonance to achieve zero voltage switching.
In this reference design, a power multiplexer circuit with 2 inputs and 1 output is implemented on a small printed circuit board (PCB). Using MOSFET gate drive circuit ICs, eFuse ICs, Zener diodes, and small package MOSFETs selected from Toshiba's various product lines, an ideal diode with BBM and MBB switching is created.
This reference design provides design guidelines, data, and more for a 1.6kW AC-DC converter power supply using a T-type three-level power factor correction (PFC) circuit.
Application circuit of low-power operational amplifier TC75S102F suitable for various sensors. These application circuits can be used in devices requiring long battery life, IoT sensors, energy harvesting systems, and more.
The power supply has a stable symmetrical +/- 40 V to ensure optimal performance.
Maximum power (THD 1%) approaches 100 W into 8 Ω load and 190 W into 4 Ω load (see measurements). All parts are through-hole, making it easy to build the amplifier. The design is completely symmetrical.
Every house has a doorbell. When a visitor arrives at a home, he looks for the doorbell switch and rings it to let us know his presence. What if a person coming to your home cannot find the doorbell, or the person is too short to reach the doorbell? The object detection circuit installation below is for reference. The circuit will automatically sense the presence of a person and ring the doorbell.
Cell phones typically send and receive signals in the frequency range 0.9 to 3GHz. This article provides a simple circuit that detects the presence of an activated mobile phone by detecting these signals.
The basic principle of the mobile phone detector circuit is to detect radio frequency signals. In Schottky diode circuits, Schottky semiconductors are used to detect mobile phone signals because of their unique properties of being able to correct low-frequency signals with low noise rates. When an inductor is placed near an RF signal source, it receives the signal through mutual inductance. This signal is rectified by a Schottky diode. This low-power signal can be amplified and used to power any indicator light, such as an LED in this case.
Through this open source tool, everyone can better understand how program firmware is "exploded", thereby improving product security. Crack AES, crack RSA, crack DES and so on.
FreeEEG32 is a stackable, open source, 32-channel, 24-bit, sigma-delta, simultaneous sampling board designed to meet the needs of scientists and brain hackers who require high-quality, affordable research-grade equipment. We have been developing this EEG for many years as we worked to create the ultimate open source solution to expensive proprietary EEG technology. FreeEEG32 combines four 8-channel AD7771 ADCs with ultra-low noise (<0.22 μV measured) sources and references, all driven by the powerful STM32H7 ARM Cortex-M7, while handling pre-processing. It's sensitive enough to handle high-quality EEG data collection and more.
The HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range.
HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range
25W-500W scalable output power Class D audio power amplifier reference design. Using IRS2092 protected digital audio driver
A phase compensation algorithm is used to compensate for the additional phase delay introduced by the multiplexed ADC, thereby producing an effect equivalent to a synchronously sampled ADC.
The MAXREFDES1213 is a reference design showcasing the MAX32630FTHR and MAX11311, as well as several other Maxim products, that demonstrates a small size, low-cost, portable electronic load (E-load) for testing power converters and PMICs.
The complete PCB related files are open source, and there is also a design document for reference and study.
This design uses the variable gain wideband amplifier VCA810 to increase the gain and expand the AGC control range, and uses software compensation to reduce the step interval of the gain adjustment and improve the accuracy. The input part uses a high-speed voltage feedback op amp 0 P A842 as a follower to increase the input impedance, and a protection circuit is added to the input part without affecting performance. Various anti-interference measures are used to reduce noise and suppress high-frequency self-excitation. The power output part is made of discrete components. The passband of the entire system is 4.4 k Hz ~ 8.4 MH z, with a minimum gain of 0 dB and a maximum gain of 70 dB. The gain step is ld B/6dB/arbitrarily set. The error between the preset gain and the actual gain below 60 dB is less than 0.2 dB. The effective value of the undistorted output voltage reaches 10.1 V, and the AGC control range is 52 dB when outputting 4.5 ~ 5.5 V.
The KITOPAMP1120 provides a selection of operational amplifiers and comparators useful for evaluation and to promote the product family.
Maxim Integrated partnered with First Sensor to design a reference design featuring the First Sensor 4-channel APD array, Maxim quad TIA with multiplexer MAX40662, and Maxim single fast comparator MAX40026.
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