Output voltages of a seven- stage negative charge pump and a five-stage positive charge pump, fabricated with a 0.15- μ m CMOS process, were measured. These measurements show that the developed charge pump achieves the target regulation positive high voltage (+ 6.5 V) and negative high voltage (– 6 V) at low power-supply voltage Vdd of 1.5 V while also achieving low power consumption.
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