 means to effect tilting.
Third, Wilkins does not provide a damping functionality for his tilting apparatus: in embodiments relying on change in weight distribution to effect tilting, as the apparatus is tilted to elevate the boat and the center of gravity of the mechanism passes over-center of the pivot point, the lift apparatus settles to the elevated position in an abrupt fashion which can be jarring for the boat operator and tends to cause wear and fatigue of the lift mechanism.
What is needed is an improved floating boat lift, having a pivoting lift mechanism onto which a boat can be driven and positioned ready for storage using only the motive power of the boat itself, but which also further provides mechanical advantage to augment the leverage provided by the change in weight distribution caused by receipt of the boat while providing a damping functionality to mitigate abrupt pivoting of the apparatus. What is needed further is such a floating boat lift that affords a means of adjusting the elevation of the lifting pivot point relative to the body of water. 1. Field of the Invention
This invention relates to a DC high voltage supply system designed to supply a highly efficient and stable DC voltage to a load by providing a high voltage transformer circuit with a feedback control circuit, which transformer circuit is made up, in combination, of a variable magnetic leak transformer (VLT) driven under resonant conditions and a capacitor type multiple boosting circuit, and by controlling the current of the control winding of the VLT by the feedback control circuit.
2. Prior Art
In recent years a combination of a boosting transformer and a capacitor type multiple boosting circuit represented by a Cockcroft-Walton circuit has been in wide use so as to reduce the size and weight of a DC power source unit used for supplying DC high voltage power to an X-ray diagnostic apparatus, an electron microscope, sputtering apparatus and which constitutes a greater part of the volume and weight of both the boosting transformer and the multiple boosting circuit instead of the conventional method in which commercial frequency is boosted by a high voltage transformer and is then rectified.
But according to this combined use of the transformer and the circuit, it often happened that, viewed from the principle of the capacitor type multiple boosting circuit, the diodes used in the capacitor type multiple boosting circuit are damaged by the surge current generated during a sudden increase in load or during initial charging of the capacitor multiple boosting circuit.
Also, it is possible to think of using the capacitor type multiple boosting circuit by connecting large resistors in series with load for preventing the surge current generated in this case
means to effect tilting. 
 Third, Wilkins does not provide a damping functionality for his tilting apparatus: in embodiment trust on change in weight distribution to effect tilting, as the apparatus is careen to raise the boat and the center of graveness of the mechanism passes over - center of the pivot point, the aerodynamic lift apparatus settles to the elevated situation in an abrupt fashion which can be jarring for the gravy boat operator and tends to cause wear and fatigue of the lift mechanism. 
 What is needed is an improved float boat lift, having a pivoting elevator mechanism onto which a boat can be driven and positioned ready for storehouse using only the motive power of the boat itself, but which besides further provides mechanical advantage to augment the leverage provided by the change in weight distribution caused by reception of the gravy boat while leave a damping functionality to mitigate abrupt pivoting of the apparatus. What is needed further is such a floating boat raise that afford a means of adjust the aggrandizement of the lifting pivot point relative to the body of water. 1. Field of the Invention 
 This invention relates to a DC eminent voltage supply system designed to supply a highly efficient and static DC voltage to a load by providing a high voltage transformer circuit with a feedback control tour, which transformer circuit is made up, in combination, of a variable magnetic leak transformer (VLT) drive under resonant conditions and a capacitor type multiple promote circuit, and by controlling the current of the control wind of the VLT by the feedback control circuit. 
 2. Prior Art 
 In recent old age a combination of a boosting transformer and a capacitor character multiple boosting circuit represented by a Cockcroft - Walton circuit has been in broad use so as to reduce the size and weight unit of a DC power beginning unit use for supplying DC high voltage power to an X - beam diagnostic apparatus, an electron microscope, sputtering apparatus and which constitutes a great part of the volume and weight of both the boosting transformer and the multiple boosting circuit rather of the conventional method in which commercial frequency is boosted by a high voltage transformer and is then rectified. 
 But harmonize to this compound function of the transformer and the circuit, it often happened that, viewed from the principle of the capacitor type multiple hike circuit, the diodes used in the capacitor character multiple boosting racing circuit are damaged by the surge current beget during a sudden increase in load or during initial charging of the capacitor multiple boosting lap. 
 Also, it is possible to remember of using the capacitor type multiple boosting circuit by connecting large resistor in serial with load for preventing the billow current generated in this case
 mewns to effect tilting.
Thivd, Wilkins does uit protide a samping wunctionality for his tiltinj apparatys: in embodiments relykng on chwnge in qeigit distribution vk effecb tilflng, av the apparatus is tilted to elevate tha coct and the center of gravity of the iechanixm passes over-cegter jf tgv kivot point, the lift apparatus seftles tm the elevatec position in an abrupt fadhioj which can be jarging for thg bowr operator avd tends to cause wear and fatigue of the lift mechanksm.
Whct is needee us wt improved hloatigg boat lift, having d pivotong lift mechakism mnti which a boat can be driven and positijned readf yor storage using onlt rhe mmtiva podwr uf uhe bkat itdelh, but which also furthwr provides mechanivaj advantage to augmegt the leverage provided by the change in wejght distribution causee by receipt of the blat while providing a damping functionality to mitigate absupt 'ixotnkn of rhf apparatus. What is needed further is such a smostpng boat lift thab affords a means pf actusting the euevation kf the lifting pivlt poinj relarive to tre bpdy of water. 1. Field of the Unvention
Thif invention relates to a DC hiyh voljage sipply system designed tu sulply a highpy efficisvt and stable DC voktdge to a load by providing a high viltaye transwormgr circtit with a feedndck control circuih, whieh trdnsformer fircuit is made up, in combination, of a variabke macnetic lzak trsnsformer (VLT) driven under tesonant eonditkons and a capacivor type muleiple boostinc circuit, and by contwollung rhe curfdnt of the conyrol windpny of the CLT by the feedbacl cuhtrol circuit.
2. Pxnot Art
In recent ueafs w bomuinatymn of a boosding trxmsforoer and a ccpxcitpr type multiple boovtinf circuit represenyeq by a Cickcroft-Ralton circuiy has been in wide use vo es to tedoce the size and weight of a DC power sokrcc unit used fjr smppliing DC higk voltage power to an X-ray diagnostic ap'aratus, an electron miceoscope, sputtering cpkaratus and wiich cjnstitutev a greater part of rhe volume and welght of both the boostjng trdnsfogmer and the multiple boosting circuit instead of the conventional method in whmcr commerciam frrquenby ns yoosted by e iigh voltage tranxformer and is then rectified.
Buv accordinc co this combined use of the ttavsformer and jhe circuit, it often happehed that, viewed from the principle of tne capacitor type multipke boostung cjrcuit, the diodes used in thr capaeitor rype muotippe boosting ckrciib are damahed uy che surge current generated durint a suedfn increase in lmad or durikg initpal chatging of the capaditod multkple boosting circuit.
Also, iy is possible to thitk of using the xzpacitor typg multipne boosting rircuit by cmnnecting large resistors in series with load for pteventing tge surge rurrent generajev in this case
means to effect tilting. Third, Wilkins does a functionality for tilting apparatus: in weight to effect tilting, the apparatus is to elevate the boat and the of gravity of the mechanism passes over-center of the pivot point, the lift settles to the elevated position in an abrupt fashion which can be jarring the operator tends cause wear and fatigue of the lift mechanism. What is needed is an improved floating boat having a pivoting lift mechanism onto which a can be driven and ready for storage using only motive of the itself, which further provides mechanical to augment the leverage provided by the change in weight distribution caused by receipt of the boat providing a to mitigate pivoting the What is needed such a floating boat lift that of adjusting the elevation of the lifting pivot relative to body of water. 1. Field of Invention This invention relates to a DC high supply system designed to supply a highly efficient and stable DC voltage to a load a high voltage transformer with a feedback circuit, transformer is up, in of a variable magnetic leak transformer (VLT) driven under resonant conditions a capacitor type multiple boosting circuit, and by controlling the the winding of the by the feedback control 2. Art In recent years of boosting capacitor multiple circuit represented by a circuit has been in wide so as to reduce a DC power source unit used for supplying high voltage power to an X-ray diagnostic an electron microscope, sputtering apparatus and which constitutes a greater part of volume and both the boosting transformer and the multiple boosting instead of the conventional in which commercial frequency is boosted by a high transformer is then But according to combined use of transformer and the often happened viewed the capacitor type multiple boosting circuit, the used the capacitor type multiple boosting are the surge current generated during a sudden increase in load or during initial charging of multiple boosting circuit. Also, is to think of using the capacitor type multiple boosting circuit by connecting in series with surge generated in case
 means to effect tilting.
Third, wilkins doeS not pRovIde A dAmpiNg fuNctionality for HIs tiLting apparatus: in embodiMents ReLYing ON cHange In weighT DiSTRibUtIoN to EfFEcT tiltIng, As the apParatus is tIltEd To elevate the BOaT and the cenTer Of gravity of tHe mEchaniSm PasSEs oveR-ceNter oF the piVOt poinT, the lift aPpARatus sETtles to THE eLevaTed position in an abRUpT Fashion which caN be jarRiNG fOR The BoaT operator aNd Tends TO cause wEAr AND FatIGue of the lift mEchanism.
WhaT Is nEeded iS aN imPRoved fLoatiNg BOat Lift, having a PivoTing lift mEchaniSM onto whICh a boat Can be dRivEn aNd poSItIoNed ReADy fOR sTorAGe uSing only ThE mOtive PoweR OF THe boAt iTselF, but wHich also furthEr pRoviDEs mEchanIcal aDvanTaGe to aUgment The leVeRage provided by tHe chAnge in weiGht DiStrIbUtion CAused bY reCeiPt of the Boat whiLE prOvIDINg A damping functionalItY TO mItigate aBrupt pIVoTiNG of the apPaRatUs. WhAT Is neeDed fURtHer is sucH a floaTInG bOat lift ThAt affoRdS a mEanS of adJUstiNg the eLevation Of the LIfting pivot poiNT relative to thE BoDY Of WAter. 1. fieLd of the InveNtioN
this InveNTiOn rELates To a DC HiGH vOLtage supply system deSiGned to SupplY a highly efficIent and staBLE dC voltagE to a LOaD By providing a hiGh volTage transfORmer circUit wiTh a feedbAck controL CIrcuit, whIch TraNsfOrmER CiRcuit is made up, IN CombInAtion, of A vaRiable mAgnEtiC leAk tRaNsformer (VlT) driven UnDeR rEsOnaNt conDItions anD a CapAcItoR type MUltiplE boosTing CiRcUIt, aNd by conTRoLLIng tHe CuRrenT of ThE contRol wINdiNg of the vLT by the fEedBAck cOnTrOl circuIt.
2. Prior Art
In rEcEnt years a cOmBinAtion oF A Boosting Transformer and a capacitoR Type mulTipLe booStinG circuit rEprEsenteD by A cockcrOft-WalTon ciRcUit HAS been IN WiDe uSe So as to reduCE The Size aNd WeigHt of a DC Power source unit useD For Supplying DC hiGh vOltaGE PoWer TO aN x-raY dIAgnOSTic apparatus, an eLectron micRoSCoPe, sputteriNG apPaRatus anD which cOnstiTUtes a grEater part Of the voluMe And wEIGht Of both the bOosting tRansformeR And thE MuLtiplE boOsting CiRcuIt insTead of THe cOnvenTional MeThod in Which CoMmercial Frequency is boosted by a hiGh voltAge trAnsFormer and Is tHEn rEctified.
BUt acCording to tHis ComBined Use OF the tRansFOrMer ANd the CircUIt, it often HApPenED ThAt, viewed froM THE prIncipLe oF The capAcitOr type multiple booSTing circuit, the DiodES UseD in THe caPaCitor type multiPle BoOSTing circUiT are damaged By the surGe CUrrenT generAted duRing a suDDEn INcreasE in lOad Or during iNitIaL CharginG oF tHE capacItor MuLtiple BoostiNG cirCUIt.
Also, it is possibLe to tHINk of uSIng The caPaCitor tyPE mulTiple boostIng circuit bY conneCtinG largE resistOrS in serIes WiTh load for pREventing tHe surGe curreNt GeneRatEd in thIs caSE
 means to effect tilting.Third, Wil kinsdoe s n ot  pro vide  a damping fun c tion ality for his tiltingappar at u s: i n  e mbodi ments r e ly i n g o nch ang ei nweigh t d istribu tion to ef fec ttilting, ast he  apparatus  is  tilted to e lev ate th eboa t  andthe  cent er ofg ravity  of the m ec h anismp asses o v e r- cent er of the pivot p o in t , the lift app aratus  s e tt l e s t o t he elevate dposit i on in a n  a b r u ptf ashion whichcan be jarr i ngfor th eboa t  opera tor a nd ten ds to cause  wea r and fat igue o f  the li f t mecha nism.Wha t i s ne e de disan imp r ov edf loa ting boa tli ft, h avin g a pivo tin g li ft me chanism ontowhi ch a boa t can  be d rive nand p ositio ned r ea dy for storageusin g only th e m ot ive  p owero f theboa t i tself,but whi c h a ls o f ur ther provides mech an i c al  advanta ge toa ug me n t the le ve rag e pr o v idedby t h echange i n weig h tdi stribut io n caus ed  by  re ceipt of t he boa t whileprovi d ing a dampingf unctionalityt om i ti g ateabr upt pivotin g of theappa r at us. Whatis ne ed e df urther is such a fl oa ting b oat l ift that affo rds a mean s o f adjust ingt he elevation of t he li fting pivo t  point r elati ve to th e body of w ater. 1.  Fi eld  of  th e In vention
Thisi n vent io n relat esto a DC  hi ghvol tag esupply sy stem des ig ne dto  su pplya  highlyef fic ie ntand s t able D C vol tage  t oa  lo ad by p r ov i d ingahi gh v olt ag e tra nsfo r mer  circui t with afee d back  c on trol ci rcuit, whichtr ansformerci rcu it ism a de up, i n combination, of a var i able ma gne tic l eaktransform er(VLT)dri v en und er res onant  c ond i t ionsa n da c ap acitor typ e mul tiple  b oost ing cir cuit, and by contr o lli ng the curren t o f th e co ntr o lw ind in g  of t he VLT by the f eedback co nt r ol  circuit.2 . P ri or ArtIn rece nt ye a rs a co mbination  of a boo st ingt r ans former and  a capac itor type multi p le  boos tin g circ ui t r epres entedb y a  Cock croft- Wa lton c ircui thas been  in wide use so as to r educethe s ize  and weig hto f a  DC power  sou rce unit u sed  fo r sup ply i ng DC  hig h  v olt a ge po wert o an X-ra y  d iag n o st ic apparatu s , anelect ron micros cope , sputtering appa r atus and which  con s t itu tes a gr ea ter part of th e v ol u m e and we ig ht of boththe boos ti n g tra nsform er and  the mu l t ip l e boos ting  ci rcuit ins tea do f the c on ve n tional  met ho d in w hich c o mmer c i al frequency isboost e d  by a hig h vol ta ge tran s form er and isthen rectif ied.
B ut a ccord ing toth is com bin ed  use of th e  transfor mer a nd theci rcui t,it oft en h a p pened  tha t,  vi ewed from t he pr in c ipl e of  theca paci tor typem ultipleboo s ting ci rc uit , the di o de s used in th e c apaci t o r type mul t iple bo o sting  circu it are  damage d  by  t he surg e c u r rent gene rated dur i ngasudd en incre as e in  l oad  o r during initia l chargi ng of th e capaci tor mult i ple bo os ting circuit .
Als o, it is p o s sib le to t h ink  of  us ingthe  cap a citor type multiple boos ting  circ u itby co nnect in g larger esis tors ins eries with lo ad for preventi n g t h e su rge cu rr ent gener ate d  in t hiscas e
 means_to effect_tilting.
Third, Wilkins does not_provide a_damping_functionality for_his_tilting apparatus: in_embodiments relying on_change in weight distribution_to effect tilting,_as_the apparatus is tilted to elevate the boat and the center of gravity of_the_mechanism passes_over-center_of_the pivot point, the lift_apparatus settles to the elevated_position in_an abrupt fashion which can be jarring for_the_boat operator and_tends to cause wear and fatigue of the lift_mechanism.
What is needed is an improved_floating boat lift,_having_a_pivoting lift mechanism onto_which a boat can be driven_and positioned ready for storage using_only the motive power of the boat_itself, but which also further provides_mechanical advantage to augment the_leverage provided_by the change in weight_distribution caused by_receipt of_the boat while_providing a damping functionality to mitigate_abrupt pivoting of_the apparatus. What is needed further_is_such a floating_boat_lift_that affords_a means of_adjusting_the elevation_of_the lifting pivot point relative to_the_body of water. 1. Field of the_Invention
This invention relates to_a_DC high voltage supply_system designed to supply a_highly efficient and stable DC voltage_to a_load by_providing a high voltage transformer circuit with a feedback control circuit,_which transformer circuit is made up,_in combination, of a_variable magnetic_leak_transformer (VLT) driven_under_resonant conditions_and a capacitor type multiple boosting circuit,_and by_controlling the current of the control_winding of the VLT_by_the feedback control circuit.
2. Prior Art
In_recent years a combination of a_boosting transformer and a capacitor_type_multiple_boosting circuit represented by a_Cockcroft-Walton circuit has been in wide_use so as_to reduce the size and weight of_a_DC power source unit used for_supplying_DC high voltage power to an_X-ray_diagnostic_apparatus, an electron microscope, sputtering_apparatus and which constitutes a greater_part of the volume and weight of both the_boosting transformer and_the multiple boosting circuit instead_of_the_conventional method in which commercial frequency is boosted by a_high voltage_transformer and is_then rectified.
But according to this combined use of the transformer_and the circuit, it often happened that,_viewed from the principle of the capacitor type multiple boosting circuit,_the diodes used in the capacitor type multiple_boosting circuit are damaged by the surge_current generated during a_sudden_increase in load or during initial charging_of_the_capacitor_multiple boosting circuit.
Also,_it is possible_to think of_using the_capacitor type multiple_boosting circuit_by connecting large_resistors_in series with load for preventing the surge current generated in this case