Amptek PC5 Panduan Pengguna - Halaman 2

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Introduction

1.1

PC5 Description

The PC5 is a power supply for the detector and preamplifier. It provides (1) the high voltage bias

for the detector (either polarity, up to 1500 V), (2) power for the thermoelectric cooler (with closed loop

temperature control), and (3) the low voltages required for the preamplifier (+/‐5 V or +/‐8.5 V).

The settings of the PC5 must match the configuration of the preamplifier and detector or the

components may be damaged. The user is not meant to modify the PC5 configuration.

The PC5 may come with a subset of the connectors installed than shown in this document. Only the

connectors that are compatible with the ordered configuration are installed.

The PC5 can be used with Amptek's DP5 signal processor or with a custom signal processor. Figure

1 shows the two most common configurations.

1. With the DP5 as shown at the top, the DP5 controls the PC5. It turns on the power supplies,

controls the high voltage bias and temperature by DACs, monitors the actual high voltage and

temperature, and checks the bias polarity. The input power (5 VDC) can be supplied into the

DP5 (via a standard plug) or into the PC5 (via an 8 pin header or standard plug).

Communications may be through the DP5 or RS232 communication to the DP5 is possible

through the PC5.

2. With a different processor, the PC5 uses potentiometers and fixed resistors to determine the

configuration. It is not under software control and provides no readout. Power is supplied

through the PC5's 8 pin header or through a jack on the PC5. This is the "standalone"

configuration.

Figure 1. PC5 two most common configurations.

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