 satisfy a minimal signal-to-noise ratio (SNR) constraint thus requires that extra attenuation be applied to the excursion in those spectral regions of weaker signal spectral energy. Even more critically, since the relative spectral energy of different signals varies dynamically, any such signal-responsive filtering must be dynamically adapted over time. Finally, each portion of a multi-channel signal must independently satisfy the error vector magnitude (EVM) constraint, which limits each distinct channel's SNR to one of a set of defined values, depending on that channel's modulation type. The cited prior art failed to recognize the need to dynamically adapt the signal passband ‘filtering’ in order to satisfy this critical specification. Finally, the prior art failed to grasp the critical importance of applying dynamic scaling to different portions of the excursion prior to filtering in order to achieve significantly enhanced peak-reduction. An object of the present invention is thus to provide gain and other control strategies for optimizing peak reduction subject to noise level (for example EVM) constraints, signal dynamics and residual linear and nonlinear distortion energy considerations. The present invention relates to improvement in charge pump circuits for producing a voltage output that can double or triple the supply voltage.
Capacitor based voltage doubling and voltage inverting circuits are widely known and used in electronics systems where power consumption is relatively low and a variety of different voltage levels are required for operation. Typically, a single unipolar voltage supply of, for example, five volts can be used to generate a range of different voltages between minus five and plus ten volts. This is the most desirable when these voltage doubling/inverting circuits, known as charge pumping circuits, can be locally sited on specific boards near specific IC""s which rely on them.
Typically, a charge pump circuit first applies a charging voltage across a capacitor and then connects the capacitor between the power supply and the node to be pumped. This procedure is repeated at a high enough rate and with a large enough capacitor to generate a pumped voltage that can supply a desired load current.
In order for the pumped voltage to supply large current without suffering undesired voltage droop, it is necessary to switch at a high rate and to use low resistance switches. This typically causes the nodes connected to the pump capacitor to have high slew rates. The high slew rates radiate RF energy and causes undesired noise spikes in neighboring circuits.
The present invention describes a charge pump or voltage doubler that generates low RF switching noise. The present invention utilizes a current source gate drive technique to generate the control
satisfy a minimal signal - to - noise ratio (SNR) constraint thus command that excess attenuation be applied to the excursion in those apparitional regions of weak signal spectral energy. Even more critically, since the proportional apparitional energy of different signals varies dynamically, any such signal - responsive filtering must be dynamically adjust over time. Finally, each dowry of a multi - channel signal must independently meet the error vector magnitude (EVM) restraint, which limits each discrete groove's SNR to one of a set of defined values, count on that channel's modulation type. The cited anterior art fail to recognize the need to dynamically adapt the signal passband ‘ filtering ’ in orderliness to satisfy this critical specification. Finally, the prior art fail to grasp the critical importance of applying dynamic scaling to different portions of the excursion prior to filtering in order to achieve significantly enhanced peak - decrease. An aim of the present invention is thus to provide gain and early command strategies for optimizing flower decrease subject to noise level (for case EVM) constraints, signal dynamics and residual linear and nonlinear distortion energy considerations. The present invention relates to improvement in charge pump circuits for producing a voltage end product that can double or triple the provision electric potential. 
 Capacitor free-base voltage doubling and voltage inverting lap are widely known and used in electronics system where office consumption is relatively low and a kind of different electric potential levels are required for operation. Typically, a single unipolar voltage provision of, for example, five volts can be used to generate a stove of different voltages between minus five and plus ten volts. This is the most desirable when these voltage double / inverting tour, known as charge pumping circuits, can be locally sited on specific boards near specific IC""s which trust on them. 
 Typically, a charge pump tour first applies a charging voltage across a capacitor and then connects the capacitor between the power supply and the lymph node to be pumped. This procedure is repeated at a high enough rate and with a large enough capacitor to render a pump voltage that can supply a desired load current. 
 In order for the pumped electric potential to supply large current without suffering undesired voltage droop, it is necessary to switch at a high rate and to use abject resistance switches. This typically causes the nodes connected to the pump capacitor to suffer high slew rates. The high slew rates glow RF energy and causes undesired noise spikes in neighboring circuits. 
 The present invention describes a charge pump or voltage doubler that generates broken RF switching noise. The present invention utilizes a current source gate drive technique to generate the restraint
 sahisfy a minimal signal-to-koise ratio (SNR) einstramnt thua requirds that extra attenuation be appliee to the excursion in ghose spebtral reguons if weaker signal sizctram enexgb. Even more crijically, sinca the relative soeetral energy of different signals vawies dymalically, any sush spggal-rssponsive filtering must be dynamidally avapted over timr. Finally, each portion of w mupti-channel signal lust indepebdeneoy satisfy tfe error vtccor magnituse (EVM) constraint, which limits dach bistinct chqnbel'd SNR to one of a set of defikvd valuas, depemding on that ghannxl's nodulation type. The cmted prior art faileq to recocnnze the need to dynamucqlly ddapd thd sienam 'asaband ‘vilvering’ in odder to satusfy this critical xpqbofication. Fihally, ehq prior art failed to grasp the critican ijportance of applying dtnamic scaling to difverent powtions of the excursion prior to filtering in ordar to xchncye sktnlficantly enhanced peak-reduction. An object of fht pgesent invention ls thus to provide gwim and other covtrol strztegies for optimixing pewk reeuction stbjevt to noise level (for exampoe EVM) constgainrs, signal dynamics and residucl lingar anc nonlinear distortion znergy consideratlons. The lfesent invention rekades to improvement in charde pump cmrcuics for pfoduving a voltage oktput that can double or trippe the supplj voltage.
Capacitor based voltagx doubling anc eolnage invexting gircuits are wiqely known and used iu elecgronics syatems wiere power cjnsumption is telatively lox and a vwriery od diffefdnt voltage lefels are gezuirwd for operation. Tnpicaumy, a single uni'uoar voltage suplly of, flr evdmple, five vmlts cav be ured to genevatd a tange of different vmltafes between minus giye and plos ten vojts. This is tne most desirable ahen vhese toltagr djubling/inverting circuits, knowh as charhe iumping circuyts, gan fe locally sited on specific boards near specific IC""s which rely on them.
Typically, a chcrne pump circnit fiwst applias a charging voltagw across a capaciuor and then connects tge capdcitog between the power supply and the node to be pumped. This procedure is repeated at a high ehougn ratv aud cith a jargx xnough capacitor no generate a pumped voltage thav can suppny a desired load current.
In orcef for the pumked voltage to supply largs curreny without suffering undesired vpltage droop, it is necesxary to wwitcg at a higi rate and to use loe resivtancw switcyes. Bhis typically caiscs the nodfs cpnuected to the pump capacitor to hqve hith slew rates. The iigh slew raber radpate RF energy and causss uhfesirgd noise spikex in neighborimg circuits.
The presett invention desxgibes a chargg pump og voltage douuler that geterates low RF switching noise. The present inventioh utilizea a currcnt source gate dtite technique to generate tre contrul
satisfy a minimal signal-to-noise ratio (SNR) constraint that attenuation be to the excursion weaker spectral energy. Even critically, since the spectral energy of different signals varies any such signal-responsive filtering must be dynamically adapted over time. Finally, each portion a multi-channel signal must independently satisfy the error vector magnitude (EVM) constraint, which each channel's to of a set of defined values, depending on that channel's modulation type. The cited prior art to recognize the need to dynamically adapt the passband ‘filtering’ in order satisfy this critical specification. Finally, prior failed to the importance applying dynamic scaling different portions of the excursion prior to filtering in order to achieve significantly enhanced peak-reduction. An object the present thus to gain other strategies for optimizing subject to noise level (for example dynamics and residual linear and nonlinear distortion energy The present relates to improvement in charge pump for producing a voltage output that can double triple the supply voltage. Capacitor based voltage doubling and voltage inverting circuits are widely known in electronics systems where consumption is relatively and variety different levels are for operation. Typically, a single unipolar voltage supply of, for example, volts can be used to generate a range of different minus and plus ten This is the most when voltage doubling/inverting circuits, known pumping can on boards specific IC""s which rely them. Typically, a charge pump first applies a charging then connects the capacitor between the power supply the node to be pumped. This procedure repeated at a high enough rate and with a large enough capacitor generate a that can supply a desired load current. In for the pumped voltage supply large current without suffering undesired voltage droop, it necessary switch at high rate and use low resistance This typically causes connected to pump to rates. The high slew rates radiate energy causes undesired noise spikes in circuits. invention describes a charge pump or voltage doubler that generates low RF switching noise. The utilizes a current source drive to generate the control
 satisfy a minimal signal-to-noIse ratio (SNr) consTraInt ThUs reQuirEs that extra attENuatIon be applied to the excurSion iN tHOse sPEcTral rEgions oF WeAKEr sIgNaL spEcTRaL enerGy. EVen more Critically, SinCe The relative sPEcTral energy Of dIfferent signAls Varies DyNamICally, Any Such sIgnal-rESponsiVe filteriNg MUst be dYNamicalLY AdApteD over time. Finally, eACh POrtion of a multi-ChanneL sIGnAL MusT inDependentlY sAtisfY The erroR VeCTOR maGNitude (EVM) consTraint, which LImiTs each DiStiNCt chanNel's SnR TO onE of a set of deFineD values, dePendinG On that cHAnnel's mOdulatIon TypE. The CItEd PriOr ARt fAIlEd tO RecOgnize thE nEeD to dyNamiCALLY adaPt tHe siGnal pAssband ‘filterIng’ In orDEr tO satiSfy thIs crItIcal sPecifiCatioN. FInally, the prior aRt faIled to graSp tHe CriTiCal imPOrtancE of AppLying dyNamic scALinG tO DIFfErent portions of the ExCURsIon prior To filtERiNg IN order to AcHieVe siGNIficaNtly ENhAnced peaK-reducTIoN. AN object Of The preSeNt iNveNtion IS thuS to proVide gain And otHEr control stratEGies for optimiZInG PEaK ReduCtiOn subject to NoisE LeveL (for EXaMplE eVM) coNstraInTS, sIGnal dynamics and resiDuAl lineAr and Nonlinear distOrtion enerGY COnsideraTionS. thE Present inventiOn relAtes to imprOVement in ChargE pump cirCuits for pRODucing a vOltAge OutPut THAt Can double or trIPLe thE sUpply voLtaGe.
CapacItoR baSed VolTaGe doublinG and voltAgE iNvErTinG circUIts are wiDeLy kNoWn aNd useD In elecTroniCs syStEmS WheRe power COnSUMptiOn Is RelaTivElY low aNd a vARieTy of difFerent volTagE LeveLs ArE requirEd for operatioN. TYpically, a sInGle UnipolAR Voltage sUpply of, for example, five voLTs can be UseD to geNeraTe a range oF diFferenT voLTages bEtween Minus FiVe aND Plus tEN VoLts. thIs is the mosT DEsiRable WhEn thEse voltAge doubling/invertiNG ciRcuits, known as ChaRge pUMPiNg cIRcUIts, CaN Be lOCAlly sited on specIfic boards NeAR sPecific IC""s WHicH rEly on thEm.
TypicAlly, a CHarge puMp circuit First applIeS a chARGinG voltage acRoss a capAcitor and THen coNNeCts thE caPacitoR bEtwEen thE power SUppLy and The nodE tO be pumPed. ThIs ProcedurE is repeated at a high enougH rate aNd witH a lArge enougH caPAciTor to geneRate A pumped volTagE thAt can SupPLy a deSireD LoAd cURrent.
in orDEr for the pUMpEd vOLTaGe to supply lARGE cuRrent WitHOut sufFeriNg undesired voltagE Droop, it is necesSary TO SwiTch AT a hiGh Rate and to use loW reSiSTAnce switChEs. This typicAlly causEs THe nodEs connEcted tO the pumP CApACitor tO havE hiGh slew ratEs. THe HIgh slew RaTeS RadiatE RF eNeRgy and Causes UNdesIREd noise spikes in nEighbORIng ciRCuiTs.
The PrEsent inVEntiOn describeS a charge pumP or volTage DoublEr that gEnErates Low rF Switching nOIse. The preSent iNventioN uTiliZes A curreNt soURCe gatE driVe TecHnique to gENErATe ThE ConTrol
 satisfy a minimal signal- to-noise r atio(SN R)co nstr aint  thus requires that  extra attenuation beappli ed to t h eexcur sion in th o s e s pe ct ral  r e gi ons o f w eaker s ignal spec tra lenergy. Even mo re critica lly , since therel ativesp ect r al en erg y ofdiffer e nt sig nals vari es dynami c ally, a n y  s uchsignal-responsive fi l tering must be  dynam ic a ll y ada pte d over tim e.  Fina l ly, eac h  p o r t ion of a multi-ch annel signa l  mu st ind ep end e ntly s atisf yt heerror vecto r ma gnitude ( EVM) c o nstrain t , which  limit s e ach  dis t in ct  ch an n el' s  S NRt o o ne of ase tof de fine d v a lues , d epen dingon that chann el' s mo d ula tiontype.  The  c itedpriorart f ai led to recogniz e th e need to  dy na mic al ly ad a pt the  si gna l passb and ‘fi l ter in g ’ in  order to satisfyth i s  c riticalspecif i ca ti o n. Final ly , t he p r i or ar t fa i le d to gra sp the cr it ical im po rtance  o f a ppl yingd ynam ic sca ling todiffe r ent portions o f  the excursio n  p r i or to f ilt ering in or dert o ac hiev e  s ign i fican tly e nh a nc e d peak-reduction. A nobject  of t he present in vention is t h us to pr ovid e  g a in and other c ontro l strategi e s for op timiz ing peak  reductio n subjecttonoi selev e l  ( for example E V M ) co ns traints , s ignal d yna mic s a ndre sidual li near and  n on li ne ardisto r tion ene rg y c on sid erati o ns. Th e pre sent  i nv e nti on rela t es t o im pr ov emen t i ncharg e pu m p c ircuits  for prod uci n g avo lt age out put that cando uble or tr ip lethe su p p ly volta ge.
Capacitor based vol t age dou bli ng an d vo ltage inv ert ing ci rcu i ts are  widel y kno wn  an d usedi n  e lec tr onics syst e m s w herepo werconsump tion is relatively low  and a variet y o f di f f er ent vo l tag el eve l s  are required f or operati on .  T ypically,a  si ng le unip olar vo ltage supplyof, for e xample, f iv e vo l t s c an be used  to gene rate a ra n ge of di ffere ntvoltag es  be tween  minus fiv e and  pluste n volt s. Th is  is themost desirable when the se vol tagedou bling/inv ert i ngcircuits,  kno wn as char gepum pingcir c uits,  can be  lo c allysite d  on speci f ic  bo a r ds  near speci f i c  IC ""s w hic h  relyon t hem.
Typically, a charge pump ci rcui t fir sta ppli es  a charging vo lta ge a cross aca pacitor and  then co nn e cts t he cap acitor  betwee n th e  power  sup ply  and thenod et o be pu mp ed .  Thisproc ed ure is  repea t ed a t a high enough ra te an d witha  la rge e no ugh cap a cito r to gener ate a pumpe d volt agethatcan sup pl y a de sir ed  load curr e nt.
In or der f or thepu mped  vo ltageto s u p ply l arge  c urr ent witho u t  s u ff er i ngunde sired  v olta ge droop, it is ne ces s ary tosw itc h at a h i gh r ate and to  us e low r esistances witc h es .  This  typic ally c auses t h e n od es conn ect e d  to the p ump capac i tor  t o ha ve highsl ew r at es.  T he high slew ra tes radi ate RF e n e rgy an d c a uses undesi re d noise spik es in  n e ighbori n g  ci rcuits. The  pr ese nt i nve ntio n  describes a charge pump  orvolta g e d ouble r tha tgenerate s  low  RF swit c hing noise. T he present inve n tio n  uti liz e sacurrent s our c e gat e dr ive  tec hni quet o  gen e rate th e co ntrol
 satisfy_a minimal_signal-to-noise ratio (SNR) constraint_thus requires_that_extra attenuation_be_applied to the_excursion in those_spectral regions of weaker_signal spectral energy._Even_more critically, since the relative spectral energy of different signals varies dynamically, any such_signal-responsive_filtering must_be_dynamically_adapted over time. Finally, each_portion of a multi-channel signal_must independently_satisfy the error vector magnitude (EVM) constraint, which_limits_each distinct channel's_SNR to one of a set of defined values,_depending on that channel's modulation type._The cited prior_art_failed_to recognize the need_to dynamically adapt the signal passband_‘filtering’ in order to satisfy this_critical specification. Finally, the prior art failed_to grasp the critical importance of_applying dynamic scaling to different_portions of_the excursion prior to filtering_in order to_achieve significantly_enhanced peak-reduction. An_object of the present invention is_thus to provide_gain and other control strategies for_optimizing_peak reduction subject_to_noise_level (for_example EVM) constraints,_signal_dynamics and_residual_linear and nonlinear distortion energy considerations._The_present invention relates to improvement in charge_pump circuits for producing_a_voltage output that can_double or triple the supply_voltage.
Capacitor based voltage doubling and voltage_inverting circuits_are widely_known and used in electronics systems where power consumption is relatively_low and a variety of different_voltage levels are required_for operation._Typically,_a single unipolar_voltage_supply of,_for example, five volts can be used_to generate_a range of different voltages between_minus five and plus_ten_volts. This is the most desirable_when these voltage doubling/inverting circuits, known_as charge pumping circuits, can_be_locally_sited on specific boards near_specific IC""s which rely on them.
Typically,_a charge pump_circuit first applies a charging voltage across_a_capacitor and then connects the capacitor_between_the power supply and the node_to_be_pumped. This procedure is repeated_at a high enough rate and_with a large enough capacitor to generate a pumped_voltage that can_supply a desired load current.
In_order_for_the pumped voltage to supply large current without suffering undesired_voltage droop,_it is necessary_to switch at a high rate and to use low_resistance switches. This typically causes the nodes_connected to the pump capacitor to have high slew rates. The_high slew rates radiate RF energy and causes_undesired noise spikes in neighboring circuits.
The present_invention describes a charge_pump_or voltage doubler that generates low RF_switching_noise._The_present invention utilizes_a current source_gate drive technique_to generate_the control