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physics department
physics department

... -(Q/C) -40V - 10K (2ma) +30V = 0. Thus Q/C = -30V => Q= -1.5mC. The - sign means that the polarity of C is opposite to what we guessed in the loop equation, so left side is +. 20. The ‘rms’ values of voltage and current employed in alternating-current (AC) calculations are useful for: (1) determinin ...
SGC2463Z 数据资料DataSheet下载
SGC2463Z 数据资料DataSheet下载

ADP5022 英文数据手册DataSheet 下载
ADP5022 英文数据手册DataSheet 下载

Modelling LED Lamps with Thermal Phenomena Taken into Account
Modelling LED Lamps with Thermal Phenomena Taken into Account

... temperature of the power supply Tj1. The presented model takes into account both self-heating phenomena in every LED, and in the power supply, and mutual thermal coupling between diodes contracted in the LED module and between this module and the power supply. The controlled current sources contract ...
semiconductor circuit templates
semiconductor circuit templates

... regulated output voltage value if the unregulated input supply voltage is the same for both. ...
Data Sheet 85001-0283 -- 4-inch Ceiling Speakers and Speaker
Data Sheet 85001-0283 -- 4-inch Ceiling Speakers and Speaker

... watt provide maximum on-site flexibility where higher or lower output is desired. Connect up to #12 AWG wire using the speaker’s large terminal block. The speaker’s integral DC blocking capacitor permits electrical supervision of the audio distribution circuit. Models for 25 Vrms and 70 Vrms circuit ...
TPS40052 数据资料 dataSheet 下载
TPS40052 数据资料 dataSheet 下载

... BP5 AND BP10 INTERNAL VOLTAGE REGULATORS Start-up characteristics of the BP5 and BP10 regulators are shown in Figure 2. Slight variations in the BP5 occurs dependent upon the switching frequency. Variation in the BP10 regulation characteristics is also based on the load presented by switching the ex ...
EW lab manual - WordPress.com
EW lab manual - WordPress.com

... to much larger sizes for ratings of 500 amperes or more. A light emitting diode(LED) is a transducer which converts electrical energy to light. A special diode called zener diode, which is used to maintain a fixed voltage across its terminals. Finally a photo diode is a light-sensitive diode. ...
MTP10N10E Power MOSFET 10 Amps, 100 Volts
MTP10N10E Power MOSFET 10 Amps, 100 Volts

CN3065
CN3065

OKI-78SR Series
OKI-78SR Series

... Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safety, we recommend a fast blow fuse installed in the un ...
LM148/LM248/LM348 Quad 741 Op Amps (Rev
LM148/LM248/LM348 Quad 741 Op Amps (Rev

AN-9742 Device Selection Guide for Half-Bridge Welding Machine (IGBT & Diode) Summary
AN-9742 Device Selection Guide for Half-Bridge Welding Machine (IGBT & Diode) Summary

Design of CMOS Crystal Oscillator with Low Power
Design of CMOS Crystal Oscillator with Low Power

... amplifier to stabilize the static operating point of amplifier. Generally the feedback resistance doesn’t require precise resistor but large numerical value. And so we can use large length and small width transistor instead of Rf. ...
NE555, SA555, SE555 PRECISION TIMERS
NE555, SA555, SE555 PRECISION TIMERS

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AD8005

... RL = 1kV TO +1.5V ...
Transient Voltage Surge Suppression Design
Transient Voltage Surge Suppression Design

1.5 A 280 kHz/560 kHz Boost Regulators
1.5 A 280 kHz/560 kHz Boost Regulators

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FXLA104 Low-Voltage Dual-Supply 4-Bit Voltage Translator with

... The device remains in three-state as long as either VCC=0V, allowing either VCC to be powered up first. Internal power-down control circuits place the device in 3-state if either VCC is removed. The /OE input, when HIGH, disables both the A and B ports by placing them in a 3-state condition. The /OE ...
HDSP-340x Series
HDSP-340x Series

... 1. Case temperature of the device immediately prior to the intensity measurement is 25°C. 2. The digits are categorized for luminous intensity. The intensity category is designated by a letter on the side of the package. 3. The dominant wavelength, λd, is derived from the CIE chromaticity diagram an ...
MTW10N100E Power MOSFET 10 Amps, 1000 Volts
MTW10N100E Power MOSFET 10 Amps, 1000 Volts

... exceed (TJ(MAX) − TC)/(RθJC). A Power MOSFET designated E−FET can be safely used in switching circuits with unclamped inductive loads. For ...
performance in absolute perfection
performance in absolute perfection

DRS-12V50W1NX (March 2016, Rev. 00)
DRS-12V50W1NX (March 2016, Rev. 00)

... Sync DIN Rail Power Supply 12V 50W 1 Phase (NEC Class 2) / DRS-12V50W1N□ Operating Mode ...
FODM611 High Noise Immunity, 5V, 10Mbit/sec Logic Gate Output (Open Collector) Optocoupler
FODM611 High Noise Immunity, 5V, 10Mbit/sec Logic Gate Output (Open Collector) Optocoupler

... 7. Common mode transient immunity at output high is the maximum tolerable positive dVcm/dt on the leading edge of the common mode impulse signal, Vcm, to assure that the output will remain high. Common mode transient immunity at output low is the maximum tolerable negative dVcm/dt on the trailing ed ...
LEP 4.1.01 Measurement of low resistance
LEP 4.1.01 Measurement of low resistance

... RCu = 11.5 ± 0.3 µΩ for the copper rod, and RA1 = 19.1 ± 0.2 µΩ for the aluminium rod. ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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