All Articles

Charge Pump#3: Practical Consideration In Real Applications

In this chapter, we will look into several practical considerations and rule of thumbs that must be taken into account when designing charge pumps in real applications.

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Tech

by Joshua Alvin

on 2023/10/30

Charge Pump#2: Output Current Of A Charge Pump

In this chapter, we will explore the maximum theoretical output current that a charge pump can supply to its load.

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Tech

by Joshua Alvin

on 2023/10/30

Charge Pump#1: Overview Of Voltage Generation With Charge Pump

Charge pump offers a space-efficient solution for on-chip voltage generation, which makes it indespensable in modern ICs. In this chapter, we will look into the details on how charge pumps work.

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Published under
Tech

by Joshua Alvin

on 2023/10/30

Distributed Circuit#7: Input Impedance & Steady State Response Of Transmission Line

In this chapter we will derive input impedance expression of stubs and its unique behavior when considering operation under harmonic steady state.

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Published under
Tech

by Joshua Alvin

on 2023/03/24

Distributed Circuit#4: Handling Reflections In Terminated Transmission Line

In real applications, distributed circuit such as transmission line must be terminated at some point. In this article, we explore the solution of telegrapher's equation for lossless terminated(finite) transmission line.

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Published under
Tech

by Joshua Alvin

on 2023/03/17

Distributed Circuit#6: Handling Medium Boundaries

In this chapter we will explore boundary between two mediums with different properties, where both reflection and transmission occur.

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Tech

by Joshua Alvin

on 2023/03/17

Distributed Circuit#5: Driven Terminated Transmission Line With Source Impedance

In this article we will explore the behavior of driven finite transmission line, i.e. stubs. This chapter features intuitive animation which shows wave propagation and reflection at both source-side and load-side of such transmission line.

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Published under
Tech

by Joshua Alvin

on 2023/03/17

Distributed Circuit#3: Driven Lossless Infinite Transmission Line With Source Impedance

In this article we explore the solution of telegrapher's equation for driven lossless infinite transmission line with non-zero source impedance.

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Tech

by Joshua Alvin

on 2023/03/12

Distributed Circuit#2: Driven Lossless Infinite Transmission Line

In this article we explore the solution of telegrapher's equation for driven lossless infinite transmission line.

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Published under
Tech

by Joshua Alvin

on 2023/03/11

Distributed Circuit#1: Transmission Line And Telegrapher's Equation In Laplace Domain

In this article we will explore Telegrapher's equation derivation in laplace domain.

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Published under
Tech

by Joshua Alvin

on 2023/03/04

Distributed Vs. Lumped: A Fundamental Concept In Circuit Design

Brief explanation on distributed element circuits and their distinction from lumped element circuits.

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Published under
Tech

by Joshua Alvin

on 2023/02/17

Phased Array Transceiver Calibration

Phased array transceivers are the backbone of modern wireless infrastructure expecially in 5G. In this article we will look at the importance of phase and amplitude calibration in phased-array transceivers.

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Published under
Tech

by Joshua Alvin

on 2021/03/22

Mosfet#4: Small Signal Model Of Mosfet

In the fourth part of this article series on understanding MOSFETs, we will look into a linear approximation of MOSFET devices which is the small signal model. As the name suggest, this linear approximation is derived under the assumption of small signal operation, which is explained in the previous article.

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Published under
Tech

by Joshua Alvin

on 2021/02/14

Mosfet#3: Small Signal Operation Of Mosfet

As circuits grow in complexity, it is often difficult to perform analysis while accounting for non-linear characteristics of MOSFET devices. In the third part of this article series on understanding MOSFETs, we will look into MOSFETs' small signal operation, an assumption which is very handy for creating linear approximation of MOSFET devices.

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Published under
Tech

by Joshua Alvin

on 2021/02/14

Mosfet#2: Amplification With Mosfet

Non-linear current characteristic of MOSFET devices can be exploited to produce phenomenons which are not possible with passive devices. In the second part of this article series on understanding MOSFETs, we will look into one example of those which is voltage amplification.

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Published under
Tech

by Joshua Alvin

on 2021/02/14

Mosfet#1: Fundamental Characteristic

MOSFETs are fundamental building blocks of modern electronics. In the first part of this article series on understanding MOSFETs, we will look into the fundamental structures and currrent characteristics of MOSFET devices.

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Published under
Tech

by Joshua Alvin

on 2021/02/14

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