Jiri IC dị mfe ịgbatị ndụ batrị ekwentị gị

著者：Iflowpower – Lieferant von tragbaren Kraftwerken

Belata oriri ike ekwentị na ịgbatị ndụ batrị ya bụ ebumnuche nke injinia ekwentị mkpanaaka ọ bụla. Ndị injinia imewe na-agbakwunye ihe egwu MP3, igwefoto, na vidiyo moto zuru oke dị ka ekwentị mkpanaaka nke ọgbara ọhụrụ, nke ga-aga n&39;ihu na-ebelata oriri ike. Belata voltaji ọkọnọ ike nke ekwentị mkpanaaka mgbawa dị mkpa (dị ka mgbawa baseband analog na mgbawa baseband dijitalụ) - nwere ike ịbụ 2.

8V ma ọ bụ ọbụna 1.8V - usoro nke ibelata oriri ike. Mana mgbe injinia imewe kwesịrị idowe otu ibe nkwado ma ọ bụ karịa nwere oke voltaji ọkọnọ, enwere nsogbu.

Ihe na-emekarị bụ na ọrụ mgbakwunye nke smartphones ga-adị elu. Otu n&39;ime ihe atụ ndị a bụ ụdaolu nke eriri, ebe ọ bụ na mgbama ụda olu dị ihe dịka 3.2V, yabụ sekit na-eme ma na-ebufe ụdaolu ndị a na-abụkarị 4.

2V ike ọkọnọ voltaji. N&39;ụzọ dị otú a, nsogbu na-eme na interface n&39;etiti baseband na ringtone sekit. Iji gosi nsogbu a, anyị kwesịrị iji mgba ọkụ analọgụ gbanwee olu ma ọ bụ ụdaolu na ọkà okwu dịka ọmụmaatụ.

Iji tọghata ụdị sekit abụọ a n&39;otu ngọngọ (PCB), a na-eji ike ike eme ihe, ma ọ bụ obere voltaji dijitalụ mgbagha mbanye analọgụ mgba ọkụ na mgbawa baseband. Otú ọ dị, ekwesiri iburu n&39;uche na usoro nke ikpeazụ nwere ike ịkwụsị ike oriri nke enwetara site na mgbawa baseband iji belata voltaji ọkụ eletrik, n&39;ihi na mgbe mgba ọkụ analog na-arụ ọrụ na ọnọdụ na-adịghị mma, a ga-enwe ọtụtụ perfusion ugbu a. Otu ụzọ dị mfe iji dozie nsogbu a bụ ịgbanwe mgbagha dijitalụ site na mgbawa baseband iji chekwaa mgbawa baseband iji chekwaa ike site na iji 1.

8V voltaji, ma usoro a kwesịrị ịdị elu voltaji ọkwọ ụgbọala ga-arụ ọrụ na elu voltaji. mgbawa ọ bụla na ekwentị gị. Iji kọwakwuo usoro a, otu esi edozi onye ntụgharị ahụ, ka anyị hụ ebe nke ugbu a na-asọpụta n&39;ezie.

Dịka egosiri na eserese 1, ntinye dijitalụ nke mgba ọkụ analọg bụ ihe nchekwa CMOS bụ isi nke nwere PMOS na transistor NMOS jikọtara na inverter. Tinye mgbaama na ntụtụ ntinye I/P nke ihe nchekwa. Mgbe voltaji ntinye dị elu karịa ihe ntinye elu nke elu (VIH), voltaji mmepụta nke buffer bụ VDD (voltaji ọkụ eletrik), mgbe ntinye voltaji dị n&39;okpuru ntinye obere voltaji (VIL), voltaji mmepụta nke buffer bụ GND (ala).

Nke a na-eme ka voltaji ọnụ ụzọ nke mgba ọkụ analọgụ bụ voltaji nke isi iyi ike, si otú a na-eme ka akara ngosi ya dị. Nleba anya n&39;otu oge nke akụkụ njirimara IV nke egosiri na eserese 2 ka ị na-elele voltaji ntinye sitere na 0 gaa na voltaji ntinye nyocha VDD. Mgbe voltaji ntinye bụ voltaji ngwụcha ọ bụla nke voltaji ọkọnọ ike, IDD na-agbada na opekempe (0μA).

Otú ọ dị, mgbe voltaji ntinye dị nso na ebe nkwụsị nke ihe nchekwa ahụ, IDD abawanyela nke ukwuu. Ya mere, mgbe voltaji ntinye dijitalụ etinyere na njedebe I / P bụ voltaji nke isi iyi ike, mgba ọkụ analọgụ na-eri ike kacha nta. Usoro njirimara nwere njirimara njirimara n&39;ihi NMOS na PMOS switch tubes ejiri mee ihe na-echekwa ihe, n&39;ezie dị ka onye na-achịkwa voltaji.

Njirimara nke ibe ndị a bụ ndị a: VGS> VT-> Transistor Tube Tutor A na-agbanyụ transistor VGS ka ọ bụrụ voltaji ọnụ ụzọ, a na-emepụta ọwa na-eduzi n&39;etiti isi iyi na drain mgbe voltaji dị elu karịa voltaji. NMOS transistor Vt bụ 0.9V, PMOS transistor Vt bụ -0.

9V. Ya mere, mgbe ntinye voltaji bụ 0V, PMOS (M1) nọ na steeti, na mmepụta nke ọkwa mbụ bụ VDD. Na ọkwa nke abụọ, ngwaọrụ NMOS (M5) nọ n&39;ọnọdụ ebe nchekwa ahụ nwere ngụkọta nke 0V.

Ihe ntinye ntinye ihe ntinye na-abawanye (tupu iru oke ugbu a) mere ka mgbochi nke M1 (M1 malite gbanyụọ) na m5 nke nkwụsị nke nkwụsị (M5 malitere ịgbanwuo), mgbe ahụ, anyị ga-ahụ VDD na GND. Ọwa hyper- impedance guzobere. Ịbawanye voltaji ntinye ga-eme ka ọ bụrụ naanị otu transistor na ntinye na mmepụta transistor ụzọ abụọ nke nchekwa.

Anyị na-eji ụkpụrụ ndị a dị n&39;elu gaa n&39;ihu na-enyocha ihe ngbanwe analog, tụlee iji Adi&39;s ADG884 analog switches iji gbanwee n&39;etiti mgbanaka ekwentị mkpanaaka na okwu. Mgbama njikwa sitere na mgbawa baseband dijitalụ bụ 1.8V.

Dị ka e gosiri na FIG. 2, ọ bụrụ na ejiri akara dijitalụ 1.8V na-ebugharị mgba ọkụ simulated ozugbo, ike ọkọnọ ugbu a kwesịrị ịbụ 120μA.

Ọ bụrụ na voltaji ntinye dijitalụ nke mgba ọkụ analọg dị elu karịa 3.8V, yabụ oriri ike kwesịrị ịbụ 0 n&39;ezie. Ya mere, iji mee ka mgba ọkụ analog na-arụ ọrụ na mpaghara ike kachasị ala, akara ngosi dijitalụ nke mgbawa baseband dijitalụ bụ ịgbanwe gaa na voltaji dị elu.

Adi&39;s SC70 ultra-obere ngwugwu ma na-eri naanị 0.1μA ugbu a, dịka onye ntụgharị ọkwa dị mma maka ọrụ a. Dị ka e gosiri na FIG.

3, enwere ike ijikọ ya na voltaji na-enye ọkụ nke mgbawa baseband na voltaji ọkụ eletrik nke mgba ọkụ analọgụ ma gbanwee ọkwa mgbagha n&39;etiti ibe abụọ ahụ. N&39;ezie, analog mgba ọkụ na n&39;elu ihe atụ nwere ike ọ bụla mgbawa na-arụ ọrụ na elu voltaji. Ekwentị mkpanaaka nke oge a nwere ọtụtụ sekit agbakwunyere CMOS (IC) iji rụchaa ọrụ dị iche iche, dị ka ọdịyo na vidiyo na igwefoto dijitalụ.

Ndị IC ndị a na-arụ ọrụ n&39;okpuru voltaji ọ bụla n&39;etiti 5V ruo 1.8V, mgbe ụfọdụ ọbụlagodi voltaji ọkọnọ ike dị ala. Na nchịkọta, anyị na-eji ọkwa nke ike nchekwa ike ịgbatị ndụ batrị.

Ekwesịrị ịtụle ihe ndị a: ekwentị mkpanaaka dị ala na-ejikarị batrị ikike 600mAh. Oge nchekwa batrị nke ekwentị dị ala bụ awa 300 (HR), na aha ya bụ 2mA. Ọ bụrụ na emeghị mgbanwe ọkwa ọkwa, mgba ọkụ analọg ejiri na ihe atụ a ga-etinye ihe dị ugbu a nke 4.

8%, mana ọ bụrụ naanị ọkwa dị n&39;elu ka agbanwere, naanị 0.04% ugbu a na-etinye uche.