Zener diodes

Zener diodes are reverse biased diodes. At a particular voltage the reverse current increases sharply and the voltage at this point is virtually independent of the current through the diode. Zener diodes are available for a wide range of voltages (3 to 200 V). The temperature coefficient varies with Zener voltage from negative to positive values and crosses zero at approximately 5.6 V. For very low requirements it can be sufficient to use just a normal Zener diode. [Pg.165]

Voltage Imitation Diodes, Zener diodes, thyristors... [Pg.385]

Diodes, Zener diodes diodes shall form at least two parallel paths... [Pg.385]

Diode, silicon, 1N914, glass packagefhi o each) Diode, Zener, 6V, 1N4735, IW Diac ("bidirectional switch"), 6 volts Triac, 400V... [Pg.2]

Figure Bl.27.8. Schematic view of Picker s flow microcalorimeter. A, reference liquid B, liquid under study P, constant flow circulating pump and 2, Zener diodes acting as heaters T and T2, thennistors acting as temperature sensing devices F, feedback control N, null detector R, recorder Q, themiostat. In the above A is the reference liquid and C2is the reference cell. When B circulates in cell C this cell is the working cell. (Reproduced by pemiission from Picker P, Leduc P-A, Philip P R and Desnoyers J E 1971 J. Chem. Thermo. B41.)...

Figure 3-46 The Zener diode controller supply regulator.

Figure 3-52 Overvoltage protection schemes (a) Zener diode clamp (b) overvoltage crowbar (c) precision overvoltage crowbar.

This is a Zener diode, shunt regulator applieation. The diode is a 1N5240B... [Pg.195]

July 2001 We need to convert 9-14V DC to a 12V regulated output. Normally, one would use a flyback topology to achieve this. However, we would rather try to use a Boost topology with parallel 12V zener clamp diodes (for simplicity). The switcher simulations... [Pg.280]

Blog Entry 1 I thought a little harder on how zeners work, and realized that placing the zeners between the Vin rails will cause the zeners to melt if >12V was constantly supplied with a large Vin source, since Vin is not current regulated. Please don t flame [blame] me for the zener question I would still like to know how the Boost converter would react to overvoltaging. Perhaps that can answer whether zener diodes can even be used. [Pg.281]

I m not at all familiar with those diodes. My plan is to load the coil with 200K use the Q1 forward diode drop to regulate the transistor input voltage similar to a zener could increase R1 if it doesn t stay together. Also - enough pad spacing to stop arc-overs. [Pg.18]

Cassagneau T, Mallouk TE, Fendler JH (1998) Layer-by-layer assembly of thin film zener diodes from conducting polymer and CdSe nanoparticles. J Am Chem Soc 120 7848-7879... [Pg.473]

The circuit below should clip positive voltages at the Zener breakdown voltage and negative voltages at the diode cut-in voltage, approximately 0.6 volts ... [Pg.214]

We will now set up a Secondary Sweep to sweep the breakdown voltage of the Zener diode. First we must look at... [Pg.217]

In this section we will demonstrate the use of a Zener diode, as well as the piece-wise linear (PWL) waveform voltage source. The PWL source can be used to create an arbitrary voltage waveform that is connected by straight lines between voltage points. Wire the circuit shown ... [Pg.355]

V Zener diode Independent piece-wise linear voltage source ... [Pg.355]

DbreakZ Zener diode model. The PSpice models used to create a diode and a Zener diode are the same. The only difference is in the graphic symbols of the parts. [Pg.429]

NPNBJT Zener diode N-channel MOSFET Resistor... [Pg.430]

Double-click the LEFT mouse button on the graphic symbol for the breakout Zener diode 03,, to obtain the properties spreadsheet for the part. Two screen captures are shown to display the properties we need for this discussion. [Pg.430]

The Implementation property shows that the model for this diode is Dbteah. Suppose we want both Zener diodes in the circuit to use the model Dln4734A. Change the Implementation property to Dln4734A and type CTRL-F4 to close the spreadsheet and return to the schematic. In the schematic, the text Dbreak will change to D1H4734A ... [Pg.430]

Let us create a new Zener diode with a breakdown voltage of 3 volts. We will name this new Zener model Dz3V. The model parameter in PSpice that controls the breakdown voltage is called BV. Change the model as shown ... [Pg.435]

The diode model is used to create rectifier, signal, and Zener diodes. [Pg.446]

BV Diode reverse breakdown voltage. Used to set the diode breakdown voltage in rectifier diodes, and the Zener breakdown voltage in Zener diodes. volt oo... [Pg.446]

See also in sourсe #XX -- [ Pg.22 , Pg.115 , Pg.116 , Pg.134 , Pg.170 , Pg.194 , Pg.209 , Pg.212 , Pg.213 , Pg.215 , Pg.254 , Pg.265 , Pg.266 ]

See also in sourсe #XX -- [ Pg.559 ]

See also in sourсe #XX -- [ Pg.516 ]

See also in sourсe #XX -- [ Pg.112 ]

See also in sourсe #XX -- [ Pg.22 , Pg.115 , Pg.116 , Pg.134 , Pg.170 , Pg.194 , Pg.209 , Pg.212 , Pg.213 , Pg.215 , Pg.254 , Pg.265 , Pg.266 ]

See also in sourсe #XX -- [ Pg.22 , Pg.115 , Pg.116 , Pg.134 , Pg.170 , Pg.194 , Pg.209 , Pg.212 , Pg.213 , Pg.215 , Pg.254 , Pg.265 , Pg.266 ]

See also in sourсe #XX -- [ Pg.91 ]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...