Hybrid-pi is a popular circuit model used for analyzing the small signal behavior of bipolar junction and field effect transistors. Sometimes it is also...
7 KB (1,118 words) - 21:40, 7 April 2025
Bipolar junction transistor (redirect from Ebers-Moll model)
Another model commonly used to analyze BJT circuits is the h-parameter model, also known as the hybrid equivalent model, closely related to the hybrid-pi model...
54 KB (6,645 words) - 01:21, 1 June 2025
simplified hybrid-pi model, the following small-signal characteristics can be derived. (Parameter β = g m r π {\displaystyle \beta =g_{m}r_{\pi }} and the...
12 KB (1,518 words) - 18:27, 1 May 2025
Two-port network (redirect from Hybrid parameters)
the hybrid-pi model for Q1 draws the same current as a resistor 1 / gm connected across rπ. The second transistor Q2 is represented by its hybrid-pi model...
47 KB (5,250 words) - 03:26, 6 May 2025
circuit in Figure 1 can be represented by that in Figure 2, where the hybrid-pi model for the MOSFET has been employed. The amplifier characteristics are...
6 KB (573 words) - 07:41, 17 August 2024
small-signal model. Small-signal models exist for electron tubes, diodes, field-effect transistors (FET) and bipolar transistors, notably the hybrid-pi model and...
8 KB (1,210 words) - 00:00, 3 June 2025
further examination. For the bipolar transistor this product is (see hybrid-pi model): g m r O = I C V T V A + V CE I C = V A + V CE V T . {\displaystyle...
22 KB (2,909 words) - 23:27, 14 June 2025
circuit in Figure 1 can be represented by that in Figure 2, where the hybrid-pi model for the BJT has been employed. The input signal is represented by a...
14 KB (1,690 words) - 23:07, 23 November 2024
eponymous Giacoletto equivalent circuit for transistors (also known as Hybrid-pi model). Giacoletto studied first at the Rose-Hulman Institute of Technology...
6 KB (602 words) - 21:39, 7 April 2025
) ( r O | | R L ) {\displaystyle R_{\rm {in}}={\frac {v_{x}}{i_{x}}}=r_{\pi }+(\beta +1)({r_{\rm {O}}}||{R_{\rm {L}}})} (The analysis uses the relation...
14 KB (1,807 words) - 08:37, 12 April 2025
called a cascode amplifier. At low frequencies and using a simplified hybrid-pi model (where the output resistance due to channel length modulation is not...
11 KB (1,371 words) - 23:27, 1 June 2025
feedback amplifier would do.) At low frequencies and using a simplified hybrid-pi model, the following small-signal characteristics can be derived. If the...
13 KB (1,536 words) - 23:34, 24 December 2024
operations. Gummel–Poon model Ebers–Moll model Hybrid-pi model H-parameter model Bipolar junction transistor § Theory and modeling Safe operating area Electronic...
14 KB (1,523 words) - 19:54, 19 June 2025
article hybrid-pi model. The current dependence of the resistor values is: r π = v be i b | v ce = 0 = V T I B2 = β 2 V T I C2 , {\displaystyle r_{\pi }={\frac...
19 KB (2,726 words) - 23:06, 15 November 2024
parameters of the hybrid-pi model to characterize the small-signal, grounded emitter characteristics of a transistor. In this model, the current gain...
79 KB (10,104 words) - 23:29, 19 June 2025
genetics in electronics, a special type of small-signal model is referred to as a hybrid-pi model in discrete mathematics, a permutation Projection ϖ (a...
62 KB (6,019 words) - 01:11, 9 June 2025
portal Negative feedback amplifier Buffer amplifier Two-port networks Hybrid-pi model Common collector Common emitter Common base Common source Common gate...
4 KB (297 words) - 16:05, 2 April 2025
require computer models. Threshold voltage Short channel effect Drain-induced barrier lowering MOSFET operation Hybrid-pi model Transistor models "Distortion...
8 KB (1,000 words) - 17:49, 6 March 2025
i_{c1}~\approx ~i_{e3}} . Transistor Q3 is represented by its low-frequency hybrid-pi model with a current controlled dependent current source for the collector...
37 KB (6,248 words) - 11:17, 3 June 2025
{\frac {R_{\text{E}}}{R_{\text{E}}+{\frac {r_{\pi }}{A_{\text{v}}+1}}}}\right)+R_{\text{E}}\|{\frac {r_{\pi }}{A_{\text{v}}+1}}.} For a large gain Av ≫ rπ...
28 KB (4,076 words) - 17:55, 6 March 2025
small-signal schematic for the amplifier with the two-port in place using the hybrid-pi model for the transistors. Figure 5 shows the schematic with notation R3...
54 KB (6,754 words) - 23:22, 25 May 2025
matrix Scattering parameters Impedance parameters Two-port network Hybrid-pi model Power gain Any square matrix commutes with itself and with the identity...
9 KB (1,681 words) - 06:14, 12 December 2023
Orbital hybridisation (redirect from Hybrid orbital)
(or hybridization) is the concept of mixing atomic orbitals to form new hybrid orbitals (with different energies, shapes, etc., than the component atomic...
33 KB (3,204 words) - 20:53, 19 May 2025
asymptotic gain model. The small-signal equivalent circuit is shown in Figure 4, where the transistor is replaced by its hybrid-pi model. It is most straightforward...
20 KB (2,944 words) - 12:37, 12 August 2023
Early effect (category Transistor modeling)
effect can be accounted for in small-signal circuit models (such as the hybrid-pi model) as a resistor defined as r O = V A + V CE I C ≈ V A I C {\displaystyle...
13 KB (2,435 words) - 23:10, 7 October 2024
BSIM (category Transistor modeling)
BSIM (Berkeley short-channel IGFET model) refers to a family of MOSFET transistor models for integrated circuit design. It also refers to the BSIM group...
4 KB (366 words) - 18:31, 21 June 2025
small-signal circuit obtained by replacing the transistor with its hybrid-pi model. The objective is to find the return ratio of the dependent current...
7 KB (1,096 words) - 20:51, 30 July 2024
Economic order quantity (redirect from EOQ Model)
{\displaystyle \pi s+{\hat {\pi }}\int \limits _{0}^{T_{2}}\lambda tdt=\pi s+{\frac {1}{2}}{\hat {\pi }}\lambda T_{2}^{2}=\pi s+{\frac {{\hat {\pi }}s^{2}}{2\lambda...
19 KB (2,944 words) - 04:46, 22 February 2025
y t Hybrid new Keynesian Phillips curve. {\displaystyle \pi _{t}=(1-\psi )\beta E_{t}[\pi _{t+1}]+\psi \pi _{t-1}+\kappa y_{t}\qquad {\mbox{Hybrid new...
10 KB (1,683 words) - 08:17, 24 April 2024
The σ-π model and equivalent-orbital model refer to two possible representations of molecules in valence bond theory. The σ-π model differentiates bonds...
8 KB (938 words) - 21:41, 25 October 2023