Design of 4H-SiC-Based Silicon-Controlled Rectifier With High Holding Voltage Using Segment Topology for High-Voltage ESD Protection

Do, Kyoung-Il; Lee, Byung-Seok; Kim, Sang Gi; Koo, Yong-Seo

doi:10.1109/led.2020.3022888

Cited by 12 publications

(5 citation statements)

References 26 publications

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“…Controlling the battery charging process by opening and closing the direct current flow from the rectifier to the battery is the basic function of a battery charge controller [20]. An example of the application of the BCR system is the installation of BCR on a UPS that uses a battery as a power source for electronic equipment [21]. Thyristors are used as rectifiers, thyristors are semiconductor-based electronic devices that can regulate large currents and voltages [22].…”

Section: Methodsmentioning

confidence: 99%

Battery charger regulator with fully controlled return 15 V/5 A in uninterruptible power supply

Hasibuan,

Daud,

Hutagalung

et al. 2024

IJAPE

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Fully controlled rectifier and BCR. The battery charge regulator (BCR) is the most important unit of an uninterruptible power supply (UPS) device. The BCR uses a 15 V/5 A transformer to lower the voltage so as not to overload the BCR components. Full control using four thyristors serves to supply voltage to the BCR, while the BCR serves to regulate battery charging. Forcing the battery to be charged at a constant voltage with the same current results in shorter battery life. Battery charging through the BCR is set to match the battery voltage, then allowing the BCR to control it by adjusting the phase voltage to 13.5 V for high voltage discharge (HVD) and 10.5 V for low voltage discharge (LVD). By using an IC Regulator combined with a relay as a voltage breaker for a fully charged battery, it will automatically disconnect to avoid overcharging the battery. Based on the performance test results of a fully controlled rectifier system using thyristors and BCR on a 12V/5Ah battery, the output voltage is as a fully controlled 12 V rectifier, the BCR switch can charge the internal battery in minutes with a current that varies between 2.1 A to 0.1 A.

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Section: Methodsmentioning

confidence: 99%

Battery charger regulator with fully controlled return 15 V/5 A in uninterruptible power supply

Hasibuan,

Daud,

Hutagalung

et al. 2024

IJAPE

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“…First, the proposed LDO regulator exhibited excellent transient response characteristics and very low bias current characteristics even under high load current conditions. Second, the proposed LDO regulator is proven to meet the ESD requirements of low-voltage integrated circuits by integrating a SCR based ESD protection circuit to prevent IC damage due to static electricity [20]- [23].…”

Section: Introductionmentioning

confidence: 99%

Design of High-Robustness LDO Regulator With Floating SCR Based ESD Protection Circuit Using High Gain Buffer

Kwon,

Do,

Lee

et al. 2024

IEEE Access

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Currently, in the semiconductor market, reliability response to Electro Static Discharge (ESD) situations is being discussed as an alternative to internal Integrated Circuit (IC) destruction. In this paper, the ESD protection circuit design integrated into the Low Drop Out (LDO) regulator presents an alternative to the reliability of the internal IC. Additionally, the LDO regulator proposed in this paper is designed to minimize output voltage changes by significantly improving gain using a high gain buffer structure. Undershoot and overshoot were effectively regulated by utilizing a high gain buffer. Under the conditions of an input voltage range of 3.3-4.5 V, a maximum load current of 400 mA, and an output voltage of 3 V, the output of the proposed LDO regulator with a high gain buffer structure kept at the undershoot and overshoot voltages of 32 mV and 36 mV, respectively. In addition, the ESD protection circuit used so far was designed with only a single diode, but the proposed ESD protection circuit is a new structure designed based on Silicon Controlled Rectifier (SCR). The proposed ESD protection circuit has an incomparable area efficiency compared to diodes.INDEX TERMS LDO regulator, High reliability, ESD protection circuit, SCR, LDO regulator in integrated with ESD protection circuit.

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“…The LVTSCR ESD protection structure has improved electrical properties to effectively prevent ESD surge at a low voltage. The proposed LDO regulator has built in an LVTSCR-based ESD protection circuit to secure the high reliability of the IC circuit [18][19][20][21][22][23][24]. The proposed LDO regulator using the current driving buffer structure was secured reliably by applying ESD surge to POWER CLAMP and I/O CLAMP, and then the output voltage was verified.…”

Section: Introductionmentioning

confidence: 99%

Design of Capacitor-Less High Reliability LDO Regulator with LVTSCR Based ESD Protection Circuit Using Current Driving Buffer Structure

Kwon

Koo

2022

Electronics

Self Cite

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The peak voltage depending on the load current can be affected by the external capacitors installed in the output stage of the LDO regulator. However, the capacitor-less LDO regulator proposed in this study was applied a current driving buffer structure between the output stage of the error amplifier and the path transistor. Therefore, the proposed LDO regulator maintained a stable output voltage regardless of the load current by controlling an effective overshoot/undershoot voltage. In addition, the proposed LDO regulator has a built-in LVTSCR based on the ESD protection circuit. As most IC circuits are malfunctioned and destroyed by the ESD phenomenon, the reliability was verified through the built-in ESD protection circuit of the proposed LDO regulator. The proposed LDO regulator with the current driving buffer structure can effectively control the peak voltage. As a result of the measurement, the undershoot voltage of 22 mV and the overshoot voltage of 19 mV were maintained when the load current of 250 mA was provided under the conditions of 3.3 V to 4.5 V and the output power voltage of 3 V. The proposed ESD protection circuit is also guaranteed to function at temperatures as high as 500 K.

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Design of 4H-SiC-Based Silicon-Controlled Rectifier With High Holding Voltage Using Segment Topology for High-Voltage ESD Protection

Cited by 12 publications

References 26 publications

Battery charger regulator with fully controlled return 15 V/5 A in uninterruptible power supply

Battery charger regulator with fully controlled return 15 V/5 A in uninterruptible power supply

Design of High-Robustness LDO Regulator With Floating SCR Based ESD Protection Circuit Using High Gain Buffer

Design of Capacitor-Less High Reliability LDO Regulator with LVTSCR Based ESD Protection Circuit Using Current Driving Buffer Structure

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