cost low power flyback converter

... multiplier-based VGA is limited (2) Power consumption In this design, low power consumption is a must However, it will be shown that the multiplier-based VGA is not power efficient Referring to Fig ... common-mode feedback is not required because of these low impedance nodes Due to the power efficient complementary differential pairs in the input stage, power consumption is minimized (9.5mW) for all ... conversion at the output of the VGA Due to the power efficient complementary differential pairs as the input stage, the power consumption is minimized to a very low level (

Ngày tải lên: 06/11/2012, 10:26

... models So this study presents analyses of new or adapted hydraulic energy converters more appropriate to micro-hydro (i.e., low power) which can be easily installed in rural areas or isolated zones ... pp.431-444 437 between the flow and the turbulence, numerical results for the turbulent flow tend to be more sensitive to the dependence of the grid than to the laminar flow Therefore, it should ... first graph represents the flow velocity at the entrance and exit the turbine, where lower values correspond to exits and higher values to entrances, The volume flow entering and exiting the...

Ngày tải lên: 05/09/2013, 15:28

... through the module [4] When the input power is too low, the Peltier effect is weak, resulting in a low dehumidifying rate On the contrary, when the input power is too high, the Joule effect is ... different input powers of the thermoelectric module It can be seen the dehumidifying period depends strongly on the input power of the thermoelectric module In this experiment, when the input power was ... summary, despite that the COP obtained by the present experimental setup is at a relatively low level, a lower power TED is of certain commercial interest From the present experimental results, it...

Ngày tải lên: 05/09/2013, 16:10

... available DC to DC converters are numerous and encompass step-down (buck) converter, step-up (boost) converter, step-down/step-up (buck-boost) converter, Cuk converter, full-bridge converter etc However, ... ENGNG3070 Power Electronics Devices, Circuits and Applications TOPOLOGIES OF POWER ELECTRONIC CONVERTERS 3.1 Introduction Power electronic converters (PECs) are static devices, ... application of cycloconverters is in induction and synchronous motor drives in very high power range where low speed operation is required Matrix converters are a relatively new class of converters which...

Ngày tải lên: 17/12/2013, 14:15

... MAX485/MAX490/MAX491/MAX1487 Transmitting a 150kHz Signal Low- Power Shutdown Mode (MAX481/MAX483/MAX487) A low- power shutdown mode is initiated by bringing both RE high and DE low The devices will not shut down unless ... vs TEMPERATURE 400 OUTPUT HIGH VOLTAGE (V) OUTPUT LOW VOLTAGE (V) MAX481-13 SUPPLY CURRENT (µA) MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487 Low- Power, Slew-Rate-Limited RS-485/RS-422 Transceivers ... when DE is low If the driver outputs are enabled, the parts function as line drivers While they are high impedance, they function as line receivers if RE is low 5 DI Driver Input A low on DI forces...

Ngày tải lên: 22/12/2013, 14:15

... are shown in Fig.4 Fig.4 Power converter switching topology for driving EVA; (a)- asymmetrical half bridge,(b)-symmetrical half bridge, (c)full bridge The HF switching converters, despite significant ... dominant at high frequencies This reduces the efficiency of the EVCD and power losses in the converter are often higher than the power required for maintaining the resonant oscillatory regime This ... is obtained by generating low frequency triangle current pulses of EVA One possibility is to use half-bridge like in Fig.4 (a) MODELLING OF EVCD DYNAMICS Fig.2 Power converter with phase angle...

Ngày tải lên: 03/01/2014, 19:15

... the system is quite small ruled to a verb lowering where verbs are lowered onto VPs, whence lower again out by to form compound verbs requiring that a lowered have a target verb to compound with ... P(~x~x[x]) marginal extension calculus notated with a grammar a3b 5, record the task, approach Following following actual lambda compound interpretations, which are distributed appropriately higher up ... compound may itself be lowered, but only as a unit I can present Given the limited space available, For (2) associated phenomenon of crossed a compound that for verb each compound lowered VP version...

Ngày tải lên: 24/03/2014, 01:21

... that at low microwave power the variance of the EPR signal would be minimum over the whole eld scan at the out-of-phase setting, the correct phase angle can be calculated from two high -power spectra ... with low concentration of spin labels should be detected At low concentration of spin labels where high receiver gain is required to obtain a spectrum of good quality, it is difcult to follow ... the expression method of variance to distinguish this procedure from the conventionally used low- power phase setting (null method) The procedure was tested on MSL-haemoglobin in different regions...

Ngày tải lên: 24/03/2014, 03:21

... Time from Power- down and Power- save Additional Delay from Reset (VCC = 5.0V) 00 18 CK – 01 18 CK 4.1 ms Fast rising power 10 18 CK 65 ms Slowly rising power 11 CK(1) 4.1 ms Fast rising power or ... CKSEL0 SUT1 Start-up Time from Power- down and Power- save 00 258 CK(1) 4.1 ms Ceramic resonator, fast rising power 01 258 CK(1) 65 ms Ceramic resonator, slowly rising power 10 1K CK(2) – Ceramic ... Selection SUT1 Start-up Time from Power- down and Power- save Additional Delay from Reset (VCC = 5.0V) 00 CK – 01 CK 4.1 ms Fast rising power CK 65 ms Slowly rising power 10 (1) 11 Note: Recommended...

Ngày tải lên: 15/04/2014, 14:32

... INTRODUCTION……………………………………………………………………XIII ULTRA -LOW- POWER DESIGN: DEVICE AND LOGIC DESIGN APPROACHES……………………………………….………………………………….1 ON-CHIP OPTICAL INTERCONNECT FOR LOW- POWER …………………21 NANOTECHNOLOGIES FOR LOW POWER …………….…………………….40 ... to proposals on other levels in the design flow and to future work Keywords: Low- power design, dynamic power reduction, leakage power reduction, ultralow-Vth devices, multi-Vdd, multi-Vth, CVS ... Technique for Low- Power Design, Proceedings of the International Symposium on Low Power Design ISLPD, 1995, pp 38 TLFeBOOK 20 [21] K Usami et al., Design Methodology of Ultra Low- power MPEG4 Codec...

Ngày tải lên: 01/06/2014, 11:43

... the potential role for low- power laser across different constructs However, this study did define the need for additional biomechanical research to identify the role for low- power laser across different ... Mayayo E: Bone fracture consolidate faster with low power laser Lasers Surgical Medicine 1987, 7(1):36-45 19 Yamada K: Biological effects of low power laser irradiation on clonal osteoblastic ... surgery or fracture allowing us to perform data synthesis on a common metric David et al [25] measured the force maximum variable changes with two different doses of low power HeNe laser irradiation...

Ngày tải lên: 20/06/2014, 04:20

... design in [13] is the slowest full adder Proposed low power dynamic carbon nanotube full adder is 46% slower than the design in [15], 12% slower than the design in [6], 39% slower than the design ... 91% lower than the design in [6], 84% lower than the design in [13],85% lower than the design in [14], and 15% lower than the design in [15] Conclusion In this paper, we proposed two novel low- power ... 90% lower than the design in [6], 81% lower than the design in [13], 82% lower than the design in [14], and 3% lower than the design in [15] Proposed multi-output dynamic full adder is 7% slower...

Ngày tải lên: 21/06/2014, 00:20

... K Weng, “An ultra-lowpower image compressor for capsule endoscope,” BioMedical Engineering Online, vol 5, article 14, 2006 [15] X Xie, G Li, X Chen, X Li, and Z Wang, “A low- power digital IC design ... twofold: saving the power dissipation on preprocessing steps and reducing the computing load of 2D DCT and quantization Moreover, to reduce the hardware cost and quantization power dissipation, ... on Advances in Signal Processing barrel shifter for power- of-two products The power- of-two quantization table shown in Figure can reduce the cost of multiplication while quality degradation is...

Ngày tải lên: 21/06/2014, 07:20

... that will follow, we assume that the duration of idle intervals, for channel i, is modeled as a geometric random variable with parameter qi : Pr idlei = K = − qi K −1 qi (2) Following the analytical ... algorithm with the highest Gittins index will be selected in the following transmission attempt Since the traffic parameters typically slowly change over time, the channel selection algorithm should ... (SA) nodes The interfering nodes can harm the spectrumagile nodes because of higher transmission power As a result, the communication of the spectrum-agile users will fail if at least one of the...

Ngày tải lên: 21/06/2014, 22:20

... ta tcca tB tg tib tcb Lb Ld Tp Tb Td Rd Meaning Power in listening Power in transmitting Power in receiving Power in awaking Power in sleeping Time to awake Average CCA check time Time to Tx/Rx ... sec) We denote the power consumed in each state as Pl , Pt , Pr , Pa , Ps , and the expected time staying in each state as Δl , Δt , Δr , Δa , Δs , respectively For a low power listening approach, ... typical power and time values required in calculating the Δ items For analysis, we refer some power and time values in the actual sensor device using CC2420 radio In particular, Pa is the average power...

Ngày tải lên: 21/06/2014, 23:20

... the power, Vdd is the supply voltage and λ is the feature size The ITRS roadmap [4, 50] indicates that beyond 130 nm, the quadratic power scaling (α = β = in (2)) breaks down and follows a slower ... (L1) 9.7 mW CIF 15 fps (L2) Power consumption 19.2 mW CIF 30 fps (L3) 71 mW 4CIF 30 fps (>L5) Process Area Gate size off-chip memory Power distribution (4CIF 30 fps) part power (mW) share % block ... encoder only requires the storage of one frame in external memory 7.3 Power consumption Power simulations are used to assess the power efficiency of the proposed implementation They consist of steps...

Ngày tải lên: 22/06/2014, 19:20

... Chandrakasan, S Sheng, and R W Brodersen, “Lowpower CMOS digital design,” IEEE Journal of Solid-State Circuits, vol 27, no 4, pp 473–484, 1992 [18] B M Bass, “A low- power, high-performance, 1024-points ... computation intensive and memory intensive, which may consume significant power [11] The existing CBT methods are not suitable for low- power VLSI realization because of the high computation complexity ... pipeline structure to increase the throughput Therefore, a lower supply voltage and a slower clock frequency can be used to achieve significant power reduction The remainder of the paper is divided...

Ngày tải lên: 22/06/2014, 19:20

... high-performance logic (HP), low- operating power (LOP), and low- standby power (LSP) in order to cover a wide range of applications that have different requirements for speed and/or power efficiency The drain ... Current density-IDSAT /GateArea Power density-IDSAT · V/ GateArea Power- delay product of gate Power consumption at IC level Dynamic power- Pd = IDSAT · V · A · u · f Leakage power- Ps = IDSAT · exp [−VT ... technology node Low- operating -power (LOP) logic 130 nm 90 nm 65 nm 2705 1192 693 DR 180 nm∗ 7315 DC 7080 2599 1142 663 536 LR 2.72 8.00 7.09 5.90 LC 0.86 DR 2.36 7.04 6.33 Low- standby -power (LSP)...

Ngày tải lên: 22/06/2014, 22:20

... a power efficiency of 33%, dCR falls from 9.5 m to 6.5 m, and to 5.5 m with a power efficiency of 19% For n = and power efficiency of 33%, dCR is lowered from 5.5 m to m, and power efficiency of 19% lowers ... to estimate the decoder power consumed at throughput below that measured, based on the available power consumption data 4.2 Decoder power consumption (13) The dynamic power consumption increases ... power, PTX,U , exceeds regulatory limits on maximum allowable transmitted power at a certain distance dPlim ≤ dCR If so, then coding will be necessary simply to reduce the transmit power below...

Ngày tải lên: 22/06/2014, 22:20

... Reducing power consumption is also a key issue in highly integrated SoC to avoid heat removal problems requiring the use of costly packaging and cooling mechanisms Therefore, the realization of cost- effective ... filter application The first strategy leads to costs, expressed in terms of computational complexity and data loading, that are twice lower (B times lower in case of B successive filter applications) ... processing time (Figure 11) versus the size of the operands The ROM-based approach is suitable for low -cost, low- quality video applications since the small number of used bits can be exploited to reduce...

Ngày tải lên: 23/06/2014, 01:20