A hysteretic comparator is proposed for comparing input signals and producing an output signal VOT with a hysteresis window V. The hysteretic comparator includes a differential input stage with current output (DICO) having input transistors with transconductance Gmfor converting the input signals, with ...
1.Mismatch analysis ofhysteresis comparatorwith 0.6μm CMOS process0.6μm CMOS工艺迟滞比较器的失配分析 2.This paper, describes the mathematical model of ahysteresis comparator.给出迟滞比较器的数学模型,通过PSPICE电路模拟验证了模型的正确性,并给出运用该模型模拟带迟滞比较器的RCOp-Amp非自治混沌电路的实 ...
HPS控制思路就是如果Vout超过某个电压就关闭clock或者drive power stage, 导致Vout下降.当Vout低于某个电压再开启clock,或者把Vout抬起来. 注意comparator需要迟滞, 用来增强噪声干扰性. 但是注意Vout的变化至少表现为比较器的hysteresis, 再加上delay, Vout的变化variation会更大. buck hysteretic power supply (HPS) B...
Accurate hysteretic comparator and method 发明人: MOHTASHEMI BEHZAD 申请人: 申请日期: 2009-06-26 申请公布日期: 2011-03-08 代理机构: 代理人: 地址: 摘要: A hysteretic comparator is proposed for comparing input signals and producing an output signal VOT with a hysteresis window Vhys. The...
hysteretic comparator54. When the voltage ramp falls to the lower threshold of the comparator54, the output then goes back high, placing a logic ‘1’ on the input of the AND gate56. The cycle then repeats itself as long as the PWM input remains high. Diodes D3, VR2and resistors R17...
We would likely save a lot of die area in a controller of this type since there is no compensation circuitry or PWM comparator. But the main problem here is possible inductor saturation and “pulse-bunching.” We could get a string of full-width pulses, and then none, creating almost any...
(PGATE Open) EN = 0V TJ = 25°C TJ = −40°C to +125°C 2.7 V < VIN < 10 V TJ = 25°C TJ = −40°C to +125°C TJ = 25°C TJ = −40°C to +125°C 170 4 0.788 260 320 µA 7 10 0.8 V 0.812 0.01 %/V VHYST Comparator hysteresis 2.7 V < VIN < 10...
fixed frequency oscillator, short circuit protection timer, programmable soft start, precision reference, fast output voltage monitoring comparator and output stage driver logic with latch.The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and ...
high‐current single‐inductor multiple‐output switching regulatorscomparator‐based voltage‐mode hysteretic controller designsIn this Letter, two comparator-based voltage-mode hysteretic controller designs are proposed to enhance dynamic response for single-inductor multiple-output (SIMO) switching converters ...
VADJ = VIN − (RADJ × 3.0 µA) where • 3.0 µA is the minimum ICL-ADJ value (5) The negative input of the ISENSE comparator is the ISENSE pin that should be connected to the drain of the external PFET. The inductor current is determined by sensing the VDS. It can be ...