When a load 2 shortcircuits, the voltage UDS applied across the FET 1 exceeds the sum of the Zener voltage UV of the diode 3 and the cutoff voltage UT of the FET 5 and the FET 5 is conducted. As a result, an electric current flows to a terminal 12 from a terminal 10 through the...
(where η = efficiency of the converter at the intended DC load current) Using the equations 2-7 with the TPS5401 (with a VIN max of 41V to account for variation in the zener diode, η≈ 60% at desired operating point, and a desired VOUT of 3.3V), we can get as much as 50mA ...
The diode bridge, CR1-CR4 and Zener diode Z 1 provide economical temperature-compensated amplitude stabilization at ±8.5V by degenerative damping. Fig ure 20 shows the VCO's response to a ramp input. OUT 10Vsin wt X1 R2 AD534 16k. Z1 EIN Y1 Z2 C1 Y2 ~0.01 · X2 OUT AD534 Z1...
When using a series Zener diode from the input, ensure that the regulation of the input supply does not create a voltage that falls outside the recommended VBOOST voltage. (VINMAX – VD3) < 5.5 V (6) (VINMIN – VD3) > 1.6 V (7) D2 D3 VIN CIN VIN BOOST LM2734 SW GND VBOOST...
To provide additional protection when the battery is shorted to the load terminal, a 40 V Schottky diode (D) can be inserted after sensing resistor Rsen to block the high voltage entering into IC, and a Zener diode is placed at FB pin, as shown in Figure 12. The test result was shown...
This requires a pair of cathode-connected diodes (**broken link removed**) for isolation. I haven't yet measured current draw on this line, but let's assume that I'm designing for 10A just because the circuit is fused for that. So, 10A through a Schottky diode produces 5+W in heat...
defined by a zener diode breakdown voltage, upon detection of a short circuited load condition. It is important to note, however, that the Housen et al. circuitry does not attempt to otherwise modulate the IGBT gate voltage in a manner that would allow for stable, dynamic current limiting/mai...
The flyback controller power supply 932 comprises a pass-transistor supply that includes an NPN bipolar junction transistor Q934, a resistor R935 (e.g., having a resistance of approximately 10 kΩ), a zener diode Z936 (e.g., having a breakover voltage of approximately 14 volts), and a...
comparator IC1turns off the FET gate drive through Q2. Thermal switch S1provides further protection. If Q1’s heat sink gets too hot, S1opens and disconnects the gate-drive signal. By diverting Q4’s bias voltage, transistor Q6and the zener diode prevent Q1from turning on if the −15V ...
The diode function is used to automatically establish the role of the leader module in the overall load-sharing system. In the system, the UCC29002 device that becomes the leader uses the load-share bus driver amplifier to drive its output-current information onto the load-share bus for all ...