.. technique for varying the output voltage of a power supply via a programmable control voltage. Although the topology and schematic details of the power supply are not critical, the protection technique is novel. Figure 1. Adding one ...
.. I D curve of MOSFETs. Slope m2 is controlled by trimmer R 4 (m2 ∝ 1/R 4 ). Q 3 and Q 4 are connected as shown in the schematic to conduct AC. A 45 W soldering iron is used as the load to be controlled by the circuit. As the ...
.. supply can provide, and in this situation we can use steering Schottky diodes to provide load balancing (Figure 1). In this schematic, we combine the output currents to provide some simple load sharing. Note that this is different from ...
.. repetitive waveforms) to 50 MHz! This Design Idea for a sound card scope front end is a little different. Referring to the schematic (Figure 1), it combines megohm input impedance with switched x1-x10-x100 attenuation, but then adds ...
.. can deliver higher output voltage swings while still using standard (e.g., 15-volt) op amps at the front end. Figure 1. Schematic of high output voltage swing current booster. Higher swing is provided by using floating power supplies ...
.. detailed below, of the input voltage V F . The bold-faced R and C are primary frequency-determining components. Figure 1. Schematic for the voltage-controlled triangle wave generator. To get wide range, a high-impedance amplifier is ...
.. NTC thermistor. If necessary, the fan is switched on via a MOSFET. Figure 3. Simple Electronic Load based on ATtiny45/85 Schematic Diagram. All project files available in download section, in project page on Github.com [ 1 ] and in ...
.. A 1 , R CS1 , R CS2 , A 2 and R 3 , the bias current can be precisely calculated and it does not depend on temperature. The schematic cited in Reference 1 used that topology to build a 2-W audio amplifier with good performance. Figure 2. ...
.. and R8 ensure that the minimum required output current is realized, and they also make the feedback loop more stable. The schematic of the LM317L varies somewhat, depending upon the manufacturer, and, also, the LTspice model of the ...
.. measurement, a shunt resistor with a low tolerance (1% or better) should be selected. Figure 2. USB Phone Charge Guard schematic diagram The device is supplied with 3.3 V via an HT7333 LDO voltage regulator, which taps the input ...