Circuits & Schematics STMicroelectronics
Manufacturer: "STMicroelectronics"
Search results: 34 Output: 1-10
- Conventional thermostats are based on separate temperature sensor and heater devices with means for feedback between them. But in some recent EDN design ideas (DIs) we’ve seen thermostat designs that meld the functions of sensor and heater ...04-03-2024
- While choosing an op-amp buffer, some sources of negative supply were considered, because the buffer op-amp had to provide true zero voltage on its output. In reality, a typical rail-to-rail output op-amp isn’t capable of this, it can ...19-12-2023
- With just one leftover op amp or comparator, you can add a battery-condition indicator to your portable circuit design. To indicate the life in an aging battery visually, the circuit in Figure 1 varies the duty cycle and flash rate of an LED when ...20-11-2023
- You often need to measure current during circuit design and debugging. You can perform that task by breaking a path, inserting a shunt resistor, measuring its voltage, and converting the voltage to current. Unfortunately, that approach is sometimes ...19-11-2023
- Designers often use chargers with flyback topologies to quickly charge energy-storage capacitors (references 1 and 2 ). In a flyback topology, the energy transfer takes place only when the charger’s power MOSFET is off, which effectively ...08-06-2023
- Energy meters, heating/ventilation/air-conditioning (HVAC) systems, and high-power equipments that run on three-phase ac inputs pose a challenge to power-supply designers because nominal input voltage can be as high as 540 V ac. The challenge ...05-06-2023
- Positive feedback is a typical technique for distributing hysteresis around a comparator, provided that you have a resistive path between the comparator's output and the noninverting input. Positive feedback forms two threshold voltages that ...07-04-2023
- Safety fuses or fusible links see wide use in modern electronic equipment to protect the load and the power supply especially batteries against short circuits and excessive load current. Fuses are inexpensive and simple, and a wide range of parts ...15-11-2022
- One of the effective passive means you can use to suppress the ringing and clamp the overvoltages caused by the leakage energy in a flyback transformer is to implement a recuperating winding bifilar with the primary winding. This is the same ...04-08-2022
- In power converters, pulse-drive circuits transmit the pulses a controller generates to the power transistor. Driver circuits must both transmit the controller's switching on/off signals with galvanic isolation and provide energy to turn the ...03-03-2022
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