검색 결과: FDMC7660 in Charge Pump
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부품 번호 FDMC7660 에 대한 견적을 받으려면 품목을 선택하시거나 이 페이지 하단의 부품 번호 FDMC7660 내에서 검색을 세분화 하세요.
아직은 브로커포럼의 회원사로 가입 준비가 되지 않으셨다면 무료로 FDMC7660 판매자에게 연락하실 수 있습니다.

Charge Pump

A charge pump is a kind of DC to DC converter that uses capacitors as energy storage elements to create either a higher or lower voltage power source. Charge pump circuits are capable of high efficiencies, sometimes as high as 90–95% while being electrically simple circuits. Charge pumps use some form of switching device(s) to control the connection of voltages to the capacitor. For instance, a two-stage cycle can be used to generate a higher pulsed voltage from a lower-voltage supply. In the first stage of the cycle, a capacitor is connected across the supply, charging it to that same voltage. In the second stage of the cycle, the circuit is reconfigured so that the capacitor is in series with the supply to the load. Ignoring leakage effects, this effectively provides double the supply voltage to the load (the sum of the original supply and the capacitor). The pulsing nature of the higher voltage output is typically smoothed by the use of an output capacitor. An external or secondary circuit drives the switching, typically at tens of kilohertz up to several megahertz. The high frequency minimizes the amount of capacitance required as less charge needs to be stored and dumped in a shorter cycle. The capacitor used as the charge pump is typically known as the "flying capacitor". Another way to explain the operation of a charge pump is to consider it as the combination of a DC to AC converter (the switches) followed by a voltage multiplier. The voltage is load-dependent; higher loads result in lower average voltages. Charge pumps can double voltages, triple voltages, halve voltages, invert voltages, fractionally multiply or scale voltages (such as ×3/2, ×4/3, ×2/3, etc.) and generate arbitrary voltages by quickly alternating between modes, depending on the controller and circuit topology.

Power Management > DC to DC Conversion > Charge Pump

부품 번호	DS	제조 업체	D/C	수량	지역	액션
LMC7660IM		TI	-	300	China	견적 요청서
LMC7660IM		TI	-	6000	China	견적 요청서

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