A Low Voltage CMOS Current Comparator with Offset Compensation

Suriyavejwongs, Pusit; Leelarasmee, Ekachai; Pora, Wanchalerm

doi:10.1109/apccas47518.2019.8953117

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…The pull-up current Ip generated by the leakage stage of MP12 is greater than the pull-down current Id generated by Q2, so the pull-up voltage is generated by the gate of MP13. MP13 is turned off to make the plo output low, start the adjustment tube, and raise the output voltage of LDO [8] . When the pull-up current Ip is equal to the pull-down current Id, the output is reversed, and the currents flowing through Q1 and Q2 are equal, then:…”

Section: The Design Structure Of the Transmission Tubementioning

confidence: 99%

An LDO without a Capacitor Required in Applications

Shi,

Fan,

Huang

2023

J. Phys.: Conf. Ser.

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Linear voltage regulator with low voltage dropout is widely used in DC/DC circuits because of the advantages of simple structure, low noise, high efficiency, and small package size. In this paper, high stability LDO linear voltage regulator with low static current is designed. By using a voltage detection module, the pass transistor in the regulator can be quickly regulated or switched on and off under load transient conditions. In addition, the stability of the LDO is improved by using an NMOS pass transistor and diode clamp architecture. The test results show that the typical values of linear adjustment and load adjustment of the voltage regulator are 20 mV and 200 mV, respectively. The maximum output current is 60 mA, the load current is 20 mA, and the output pressure difference under 4.8 V output voltage is 210 mV. Compared with traditional LDO, although the output current is not the maximum, the difference and stability of output pressure are greatly improved.

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Section: The Design Structure Of the Transmission Tubementioning

confidence: 99%

An LDO without a Capacitor Required in Applications

Shi,

Fan,

Huang

2023

J. Phys.: Conf. Ser.

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“…Considering the high operating current and temperature of the proposed circuit, temperature compensation should be added to the current comparator. In 0.35µm BCD technology, Poly silicon resistors with a positive temperature coe cient can be adopted to compensate for the negative temperature coe cient of V BE , but the compensation still has a large deviation in the entire temperature range [18][19][20][21][22][23]. In order to avoid increasing the complexity of the circuit, this design adopts the resistance ratio method, which uses two types of resistances with positive (Poly silicon resistor, R P ) and negative (Nwell resistor, R N ) temperature coe cients (TC) to achieve second-order temperature compensation.…”

Section: Current-limiting Protectionmentioning

confidence: 99%

Novel Current-limiting and Short-circuit Protection Technology for Low-side Power Switch

Gao¹,

Cai²,

Hao

et al. 2022

Preprint

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Based on 0.35μm BCD process, a current-limiting and short-circuit protection circuit for low-side power switch is proposed. This design adopts the compact current comparator structure to achieve 2A current limiting protection and short circuit protection for the power switch over the temperature range of -25°C to 150°C, while quiescent power consumption is only 55.8μw. The sense-FET technology of this design can achieve 98.11% accurate current sampling. Simulation and experimental results show that when the load is lower than 7.5Ω at 18V supply voltage, the current-limiting protection is triggered to limit the output current to 2A. When the load is short-circuited, the short-circuit protection is triggered and the entire circuit will be shut down. The power supply rejection ratio of this design is -53dB, and the average temperature coefficient is 277ppm/℃, while only occupying an area of 0.055 mm2.

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Design Methods of Integrated Circuits, Working Under Non-standard Operating Conditions

Melikyan

2023

Machine Learning-Based Design and Optimization of High-Speed Circuits

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A Low Voltage CMOS Current Comparator with Offset Compensation

Cited by 7 publications

References 8 publications

An LDO without a Capacitor Required in Applications

An LDO without a Capacitor Required in Applications

Novel Current-limiting and Short-circuit Protection Technology for Low-side Power Switch

Design Methods of Integrated Circuits, Working Under Non-standard Operating Conditions

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