Experiment 2K: Kirchhoff`s Rulest
... In calculations you can start with either sign. It makes no difference whether this is the correct direction or not since you will find the correct direction after you solve the equations. Solutions with the negative sign imply that the actual direction of the current is opposite to your assumed dir ...
... In calculations you can start with either sign. It makes no difference whether this is the correct direction or not since you will find the correct direction after you solve the equations. Solutions with the negative sign imply that the actual direction of the current is opposite to your assumed dir ...
SC4508A Buck or Buck-Boost (Inverting) Current Mode Controller POWER MANAGEMENT
... 1.5MHz, allowing small inductor and capacitor values to minimize PCB space. The operating current level is programmable via an external sense resistor. Accessible reference voltage allows users to make output voltage as low as they want. ...
... 1.5MHz, allowing small inductor and capacitor values to minimize PCB space. The operating current level is programmable via an external sense resistor. Accessible reference voltage allows users to make output voltage as low as they want. ...
25070 Explain the properties of conductors, insulators, and
... Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQ ...
... Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQ ...
25070 Explain the properties of conductors, insulators, and
... Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQ ...
... Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQ ...
MAX1748/MAX8726 Triple-Output TFT-LCD DC-DC Converters General Description
... The MAX1748/MAX8726 are highly efficient triple-output power supplies for TFT-LCD applications. These devices contain one high-power step-up converter and two lowpower charge pumps. The primary boost converter uses an internal n-channel MOSFET to provide maximum efficiency and to minimize the number ...
... The MAX1748/MAX8726 are highly efficient triple-output power supplies for TFT-LCD applications. These devices contain one high-power step-up converter and two lowpower charge pumps. The primary boost converter uses an internal n-channel MOSFET to provide maximum efficiency and to minimize the number ...
AC Direct Off-Line Power Supplies
... biased. Current flows from the transformer center-tap charging Cl and through D1 to the top of the secondary. Current also flows through the load resistor. During the next alternation the voltage at the bottom of the transformer secondary becomes positive forward biasing D2. Current flows from the c ...
... biased. Current flows from the transformer center-tap charging Cl and through D1 to the top of the secondary. Current also flows through the load resistor. During the next alternation the voltage at the bottom of the transformer secondary becomes positive forward biasing D2. Current flows from the c ...
Lab 1
... (1-1) Refer to your measurements from In-Lab Exercise 1-2; note that these measurements are the Thevenin equivalent voltage and Norton equivalent current of the network in Figure 4. From these measurements, compute the Thevenin/Norton equivalent resistance of the network. Compare the experimental Th ...
... (1-1) Refer to your measurements from In-Lab Exercise 1-2; note that these measurements are the Thevenin equivalent voltage and Norton equivalent current of the network in Figure 4. From these measurements, compute the Thevenin/Norton equivalent resistance of the network. Compare the experimental Th ...
seminar on polyfuse - 123SeminarsOnly.com
... The heat transfer environment of the device can significantly affect the device performance. In general, by increasing the heat transfer of the device, there is a corresponding increase in power dissipation, time to trip and hold current. The opposite occurs if the heat transfer from the device is d ...
... The heat transfer environment of the device can significantly affect the device performance. In general, by increasing the heat transfer of the device, there is a corresponding increase in power dissipation, time to trip and hold current. The opposite occurs if the heat transfer from the device is d ...
UT54ACS169 - Aeroflex Microelectronic Solutions
... 1.Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified r ...
... 1.Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified r ...
UC29431 数据资料 dataSheet 下载
... The second gain stage is the transconductance (gm) amplifier. The gm amplifier is designed with a known linear 140mS of transconductance. The voltage gain is consequently gm • Ro, where Ro is the output impedance at the collector pin. The frequency response of the transconductance amplifier is contr ...
... The second gain stage is the transconductance (gm) amplifier. The gm amplifier is designed with a known linear 140mS of transconductance. The voltage gain is consequently gm • Ro, where Ro is the output impedance at the collector pin. The frequency response of the transconductance amplifier is contr ...
DC2222A - Linear Technology
... for lower sample rates to divide down a higher frequency clock to the desired input frequency. The ratio of clock frequency to conversion rate is shown in Table 1. If the clock input is to be driven with logic, it is recommended that the 49.9Ω terminator (R5) be removed. Slow rising edges may compro ...
... for lower sample rates to divide down a higher frequency clock to the desired input frequency. The ratio of clock frequency to conversion rate is shown in Table 1. If the clock input is to be driven with logic, it is recommended that the 49.9Ω terminator (R5) be removed. Slow rising edges may compro ...
Environmental Safety - Notes For ANZCA Primary Exam
... Surgical Diathermy • = use of high frequency electric current to produce heat • used to either ‣ cut or destroy tissue ‣ produce coagulation frequency: ...
... Surgical Diathermy • = use of high frequency electric current to produce heat • used to either ‣ cut or destroy tissue ‣ produce coagulation frequency: ...
Quad Differential Line Receiver SN75ALS199
... Input voltage, VI (A or B inputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Input voltage, VI (A or B inputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
54315 Trailer Remote Receptacle.fm
... DANGER: An improperly installed remote power receptacle could lead to serious injury or death! Only a qualified electrician should perform this installation. DANGER: The remote power cable must be physically separated from the trailer’s fuel lines. Fuel lines in the presents of an electrical short c ...
... DANGER: An improperly installed remote power receptacle could lead to serious injury or death! Only a qualified electrician should perform this installation. DANGER: The remote power cable must be physically separated from the trailer’s fuel lines. Fuel lines in the presents of an electrical short c ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.