Implementation of Miniaturized Monolithic Isolated Gate Driver

Kuo, Hsuan-Yu; Lin, Jing-Fung

doi:10.1109/ecice50847.2020.9301940

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…When the voltage control signal is high, the current values of the current control and VCO are 3.23 mA and 9.73 mA, respectively. The current mirror magnifies the current to a set magnification, such as (1). Since L1 = L2 and W2 = 3W1 in this design, the magnification should be 3 times the current in Figure 5, and the result is obtained.…”

Section: Current Mirror With Current Controllermentioning

confidence: 98%

“…In addition, the data buffer amplifier converts the ASK signal into a PWM gate signal to drive the subsequent semiconductor power switch. There are two types of transformers for on-chip transformer design: stack transformer or tapped transformer [1,4]. It provides galvanic isolation in the circuit proposed in this article.…”

Section: Chip Architecturementioning

confidence: 99%

“…The stack transformer [1,4,7], shown in Figure 8, is chosen because of its higher theoretical coupling, which means that, compared with the tapped transformer [8,9], the stack transformer can transmit signal to the secondary side more effectively. However, the stack transformer still has shortcomings.…”

Section: Stack Transformermentioning

confidence: 99%

“…Since the isolation is realized by optical and electrical energy conversion, many of the shortcomings in the traditional design can be improved, such as the larger size and higher process cost in the past. This paper is an extension of work originally presented in the 2nd IEEE Eurasia Conference on IOT, Communication and Engineering 2020 [1]. The proposed system concept in which is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 97%

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Development of Miniaturized Monolithic Isolated Gate Driver

Kuo¹,

Lin²

2021

Adv. sci. technol. eng. syst. j.

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Gate driver has been applied in many ways, exemplified by that, by using the DC-isolated and AC-pass characteristics of gate driver's primary and secondary sides, the problem of floating endpoint in semiconductor power switch can be solved. However, the conventional design of isolated gate driver provides circuit voltage blocking by optically coupled components. Due to the need for optoelectronic conversion, it requires III-VI semiconductor process and non-standard CMOS process, and the cost is always high. Therefore, in order to better solve the above mentioned problem, an electronic isolated gate driver is proposed. It employs an on-chip transformer to provide voltage isolation between the primary and secondary sides of the circuit, and converts the control signal in the circuit into a highfrequency modulated signal, which in the secondary side is then demodulated by the rectifier through the on-chip transformer to produce the original control signal. The miniaturized isolated gate driver proposed herein adopts TSMC T25HVG2 process and uses an on-chip transformer design in lieu of an optically coupled components. As the amplitude shift keying, on-chip transformer, full-wave quadruple rectifier and data buffer amplifier involved in this design are all integrated on the same chip, the integration can be improved. The size can be smaller than the generally separating electronic isolated gate driver, with the interference from external noise being reduced. In addition, the proposed gate driver generates large signals, in terms of chip layout, therefore, the circuit is put inside the on-chip transformer, which can further save area.

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Section: Current Mirror With Current Controllermentioning

confidence: 98%

Section: Chip Architecturementioning

confidence: 99%